/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:46:44,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:46:44,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:46:44,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:46:44,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:46:44,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:46:44,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:46:44,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:46:44,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:46:44,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:46:44,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:46:44,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:46:44,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:46:44,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:46:44,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:46:44,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:46:44,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:46:44,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:46:44,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:46:44,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:46:44,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:46:44,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:46:44,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:46:44,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:46:44,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:46:44,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:46:44,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:46:44,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:46:44,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:46:44,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:46:44,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:46:44,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:46:44,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:46:44,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:46:44,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:46:44,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:46:44,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2020-12-17 23:46:44,344 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:46:44,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:46:44,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:46:44,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:46:44,348 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:46:44,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:46:44,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:46:44,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:46:44,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:46:44,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:46:44,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:46:44,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:46:44,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:46:44,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:46:44,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:46:44,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:46:44,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:46:44,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:46:44,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:46:44,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:46:44,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:46:44,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:46:44,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:46:44,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:46:44,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:46:44,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:46:44,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:46:44,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:46:44,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:46:44,355 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:46:44,356 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:46:44,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:46:44,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:46:44,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:46:44,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:46:44,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:46:44,822 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:46:44,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2020-12-17 23:46:44,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e45619da3/f6c0f918f012400d953cc282f5e48be7/FLAG2ae5f0240 [2020-12-17 23:46:45,624 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:46:45,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2020-12-17 23:46:45,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e45619da3/f6c0f918f012400d953cc282f5e48be7/FLAG2ae5f0240 [2020-12-17 23:46:45,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e45619da3/f6c0f918f012400d953cc282f5e48be7 [2020-12-17 23:46:45,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:46:45,909 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:46:45,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:46:45,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:46:45,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:46:45,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667e78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45, skipping insertion in model container [2020-12-17 23:46:45,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:46:46,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:46:46,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:46:46,502 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:46:46,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:46:46,671 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:46:46,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46 WrapperNode [2020-12-17 23:46:46,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:46:46,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:46:46,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:46:46,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:46:46,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:46:46,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:46:46,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:46:46,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:46:46,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (1/1) ... [2020-12-17 23:46:46,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:46:46,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:46:46,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:46:46,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:46:46,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (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 [2020-12-17 23:46:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:46:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:46:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:46:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:46:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:46:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:46:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:46:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:46:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:46:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:46:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:46:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:46:46,940 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:46:47,453 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:46:47,453 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:46:47,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:46:47 BoogieIcfgContainer [2020-12-17 23:46:47,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:46:47,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:46:47,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:46:47,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:46:47,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:46:45" (1/3) ... [2020-12-17 23:46:47,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153d8637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:46:47, skipping insertion in model container [2020-12-17 23:46:47,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:46" (2/3) ... [2020-12-17 23:46:47,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153d8637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:46:47, skipping insertion in model container [2020-12-17 23:46:47,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:46:47" (3/3) ... [2020-12-17 23:46:47,465 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2020-12-17 23:46:47,481 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:46:47,481 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:46:47,485 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:46:47,486 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:46:47,519 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,520 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,520 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,520 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,521 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,521 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,523 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,523 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,523 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,523 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,524 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,524 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,528 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,528 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,534 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,535 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,535 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:47,538 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:46:47,551 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-17 23:46:47,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:46:47,575 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:46:47,575 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:46:47,575 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:46:47,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:46:47,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:46:47,576 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:46:47,576 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:46:47,588 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-12-17 23:46:47,669 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-17 23:46:47,696 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:47,697 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:47,697 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:47,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2018155564, now seen corresponding path program 1 times [2020-12-17 23:46:47,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:47,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736678828] [2020-12-17 23:46:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:48,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736678828] [2020-12-17 23:46:48,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:48,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:48,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538968230] [2020-12-17 23:46:48,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:48,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:48,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:48,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:48,205 INFO L87 Difference]: Start difference. First operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:48,497 INFO L93 Difference]: Finished difference Result 1586 states and 4134 transitions. [2020-12-17 23:46:48,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:46:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2020-12-17 23:46:48,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:48,502 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:46:48,503 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 4134 transitions. Word has length 36 [2020-12-17 23:46:48,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:48,505 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 4134 transitions. [2020-12-17 23:46:48,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:48,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 4134 transitions. [2020-12-17 23:46:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-17 23:46:48,513 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:48,514 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:48,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:46:48,514 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:48,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1725393197, now seen corresponding path program 1 times [2020-12-17 23:46:48,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:48,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785379939] [2020-12-17 23:46:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:48,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785379939] [2020-12-17 23:46:48,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:48,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:46:48,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804467039] [2020-12-17 23:46:48,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:46:48,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:48,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:46:48,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:46:48,725 INFO L87 Difference]: Start difference. First operand 1586 states and 4134 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:49,155 INFO L93 Difference]: Finished difference Result 2166 states and 5558 transitions. [2020-12-17 23:46:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:46:49,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2020-12-17 23:46:49,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:49,158 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:46:49,159 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5558 transitions. Word has length 38 [2020-12-17 23:46:49,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:49,159 INFO L481 AbstractCegarLoop]: Abstraction has 2166 states and 5558 transitions. [2020-12-17 23:46:49,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:49,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5558 transitions. [2020-12-17 23:46:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 23:46:49,164 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:49,165 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:49,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:46:49,165 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:49,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:49,166 INFO L82 PathProgramCache]: Analyzing trace with hash -2141062468, now seen corresponding path program 1 times [2020-12-17 23:46:49,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:49,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265580375] [2020-12-17 23:46:49,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:49,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265580375] [2020-12-17 23:46:49,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:49,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:49,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606272779] [2020-12-17 23:46:49,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:49,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:49,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:49,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:49,406 INFO L87 Difference]: Start difference. First operand 2166 states and 5558 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:49,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:49,653 INFO L93 Difference]: Finished difference Result 1699 states and 4187 transitions. [2020-12-17 23:46:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:46:49,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-12-17 23:46:49,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:49,655 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:46:49,655 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 4187 transitions. Word has length 41 [2020-12-17 23:46:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:49,656 INFO L481 AbstractCegarLoop]: Abstraction has 1699 states and 4187 transitions. [2020-12-17 23:46:49,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 4187 transitions. [2020-12-17 23:46:49,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:46:49,660 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:49,661 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:49,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:46:49,661 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:49,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:49,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1222811651, now seen corresponding path program 1 times [2020-12-17 23:46:49,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:49,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194435137] [2020-12-17 23:46:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:49,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194435137] [2020-12-17 23:46:49,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:49,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:46:49,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493247118] [2020-12-17 23:46:49,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:46:49,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:49,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:46:49,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:46:49,924 INFO L87 Difference]: Start difference. First operand 1699 states and 4187 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:50,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:50,208 INFO L93 Difference]: Finished difference Result 1144 states and 2710 transitions. [2020-12-17 23:46:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:46:50,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-12-17 23:46:50,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:50,209 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:46:50,210 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 2710 transitions. Word has length 42 [2020-12-17 23:46:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:50,210 INFO L481 AbstractCegarLoop]: Abstraction has 1144 states and 2710 transitions. [2020-12-17 23:46:50,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:50,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 2710 transitions. [2020-12-17 23:46:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:46:50,214 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:50,214 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:50,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:46:50,215 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:50,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:50,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1089745218, now seen corresponding path program 1 times [2020-12-17 23:46:50,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:50,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505279758] [2020-12-17 23:46:50,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:50,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505279758] [2020-12-17 23:46:50,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:50,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:50,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410402477] [2020-12-17 23:46:50,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:50,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:50,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:50,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:50,369 INFO L87 Difference]: Start difference. First operand 1144 states and 2710 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:50,473 INFO L93 Difference]: Finished difference Result 1500 states and 3539 transitions. [2020-12-17 23:46:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-17 23:46:50,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-12-17 23:46:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:50,475 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-17 23:46:50,475 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 3539 transitions. Word has length 44 [2020-12-17 23:46:50,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:50,476 INFO L481 AbstractCegarLoop]: Abstraction has 1500 states and 3539 transitions. [2020-12-17 23:46:50,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 3539 transitions. [2020-12-17 23:46:50,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:46:50,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:46:50,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:46:50 BasicIcfg [2020-12-17 23:46:50,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:46:50,493 INFO L168 Benchmark]: Toolchain (without parser) took 4581.68 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 277.2 MB in the beginning and 278.9 MB in the end (delta: -1.7 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:50,493 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:46:50,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.21 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 247.0 MB in the end (delta: 30.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:50,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.08 ms. Allocated memory is still 302.0 MB. Free memory was 246.8 MB in the beginning and 245.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:46:50,504 INFO L168 Benchmark]: Boogie Preprocessor took 89.97 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 283.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:50,505 INFO L168 Benchmark]: RCFGBuilder took 610.26 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 263.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:50,505 INFO L168 Benchmark]: TraceAbstraction took 3031.08 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 263.0 MB in the beginning and 278.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 55.4 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:50,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 760.21 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 247.0 MB in the end (delta: 30.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 79.08 ms. Allocated memory is still 302.0 MB. Free memory was 246.8 MB in the beginning and 245.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 89.97 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 283.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 610.26 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 263.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3031.08 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 263.0 MB in the beginning and 278.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 55.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 389 SDtfs, 677 SDslu, 1325 SDs, 0 SdLazy, 171 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2166occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 20970 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...