/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:05:11,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:05:11,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:05:11,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:05:11,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:05:11,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:05:11,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:05:11,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:05:11,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:05:11,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:05:11,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:05:11,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:05:11,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:05:11,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:05:11,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:05:11,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:05:11,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:05:11,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:05:11,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:05:11,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:05:11,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:05:11,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:05:11,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:05:11,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:05:11,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:05:11,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:05:11,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:05:11,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:05:11,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:05:11,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:05:11,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:05:11,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:05:11,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:05:11,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:05:11,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:05:11,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:05:11,483 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.epf [2020-11-11 18:05:11,536 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:05:11,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:05:11,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:05:11,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:05:11,539 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:05:11,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:05:11,539 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:05:11,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:05:11,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:05:11,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:05:11,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:05:11,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:05:11,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:05:11,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:05:11,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:05:11,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:05:11,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:05:11,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:05:11,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:05:11,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:05:11,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:05:11,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:05:11,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:05:11,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:05:11,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:05:11,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:05:11,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:05:11,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:05:11,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:05:11,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:05:11,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:05:11,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:05:11,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:05:11,948 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:05:11,948 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:05:11,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-11-11 18:05:12,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43eb4f231/facbc1337bc14cfdaa61f6291ffa7747/FLAG63f8af7a0 [2020-11-11 18:05:12,696 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:05:12,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-11-11 18:05:12,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43eb4f231/facbc1337bc14cfdaa61f6291ffa7747/FLAG63f8af7a0 [2020-11-11 18:05:12,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43eb4f231/facbc1337bc14cfdaa61f6291ffa7747 [2020-11-11 18:05:12,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:05:12,982 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:05:12,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:05:12,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:05:12,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:05:12,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:05:12" (1/1) ... [2020-11-11 18:05:12,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706c2d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:12, skipping insertion in model container [2020-11-11 18:05:12,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:05:12" (1/1) ... [2020-11-11 18:05:13,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:05:13,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:05:13,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:05:13,488 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:05:13,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:05:13,686 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:05:13,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13 WrapperNode [2020-11-11 18:05:13,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:05:13,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:05:13,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:05:13,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:05:13,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:05:13,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:05:13,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:05:13,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:05:13,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (1/1) ... [2020-11-11 18:05:13,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:05:13,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:05:13,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:05:13,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:05:13,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (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 [2020-11-11 18:05:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:05:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:05:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:05:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:05:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:05:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:05:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:05:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:05:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:05:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:05:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:05:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:05:13,929 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:05:14,514 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:05:14,515 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:05:14,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:05:14 BoogieIcfgContainer [2020-11-11 18:05:14,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:05:14,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:05:14,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:05:14,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:05:14,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:05:12" (1/3) ... [2020-11-11 18:05:14,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb4ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:05:14, skipping insertion in model container [2020-11-11 18:05:14,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:13" (2/3) ... [2020-11-11 18:05:14,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb4ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:05:14, skipping insertion in model container [2020-11-11 18:05:14,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:05:14" (3/3) ... [2020-11-11 18:05:14,529 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2020-11-11 18:05:14,547 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:05:14,547 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:05:14,551 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:05:14,552 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:05:14,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,594 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,597 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,597 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,598 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,598 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,598 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:14,613 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:05:14,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-11 18:05:14,651 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:05:14,651 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:05:14,651 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:05:14,651 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:05:14,651 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:05:14,652 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:05:14,652 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:05:14,652 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:05:14,665 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-11 18:05:14,766 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2020-11-11 18:05:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2020-11-11 18:05:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-11 18:05:14,811 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:14,812 INFO L494 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] [2020-11-11 18:05:14,813 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:14,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:14,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2020-11-11 18:05:14,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:14,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891922891] [2020-11-11 18:05:14,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:15,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891922891] [2020-11-11 18:05:15,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:15,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:05:15,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388347500] [2020-11-11 18:05:15,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:05:15,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:15,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:05:15,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:05:15,380 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2020-11-11 18:05:15,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:15,632 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2020-11-11 18:05:15,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:05:15,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2020-11-11 18:05:15,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:15,663 INFO L225 Difference]: With dead ends: 1587 [2020-11-11 18:05:15,663 INFO L226 Difference]: Without dead ends: 670 [2020-11-11 18:05:15,665 INFO L749 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 [2020-11-11 18:05:15,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-11-11 18:05:15,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2020-11-11 18:05:15,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 2.5366218236173395) internal successors, (1697), 669 states have internal predecessors, (1697), 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) [2020-11-11 18:05:15,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1697 transitions. [2020-11-11 18:05:15,780 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1697 transitions. Word has length 37 [2020-11-11 18:05:15,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:15,781 INFO L481 AbstractCegarLoop]: Abstraction has 670 states and 1697 transitions. [2020-11-11 18:05:15,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2020-11-11 18:05:15,782 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1697 transitions. [2020-11-11 18:05:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-11 18:05:15,786 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:15,786 INFO L494 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] [2020-11-11 18:05:15,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:05:15,787 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:15,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:15,789 INFO L82 PathProgramCache]: Analyzing trace with hash -192993615, now seen corresponding path program 1 times [2020-11-11 18:05:15,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:15,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188260994] [2020-11-11 18:05:15,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:16,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188260994] [2020-11-11 18:05:16,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:16,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:05:16,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243219363] [2020-11-11 18:05:16,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:05:16,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:16,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:05:16,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:05:16,056 INFO L87 Difference]: Start difference. First operand 670 states and 1697 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2020-11-11 18:05:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:16,204 INFO L93 Difference]: Finished difference Result 730 states and 1820 transitions. [2020-11-11 18:05:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:05:16,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2020-11-11 18:05:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:16,210 INFO L225 Difference]: With dead ends: 730 [2020-11-11 18:05:16,210 INFO L226 Difference]: Without dead ends: 590 [2020-11-11 18:05:16,211 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:05:16,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-11-11 18:05:16,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2020-11-11 18:05:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 589 states have (on average 2.500848896434635) internal successors, (1473), 589 states have internal predecessors, (1473), 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) [2020-11-11 18:05:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1473 transitions. [2020-11-11 18:05:16,241 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1473 transitions. Word has length 39 [2020-11-11 18:05:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:16,242 INFO L481 AbstractCegarLoop]: Abstraction has 590 states and 1473 transitions. [2020-11-11 18:05:16,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2020-11-11 18:05:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1473 transitions. [2020-11-11 18:05:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-11 18:05:16,244 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:16,245 INFO L494 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] [2020-11-11 18:05:16,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:05:16,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:16,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573390, now seen corresponding path program 1 times [2020-11-11 18:05:16,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:16,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131518792] [2020-11-11 18:05:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:16,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:16,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131518792] [2020-11-11 18:05:16,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:16,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:05:16,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095028715] [2020-11-11 18:05:16,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:05:16,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:16,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:05:16,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:05:16,378 INFO L87 Difference]: Start difference. First operand 590 states and 1473 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2020-11-11 18:05:16,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:16,596 INFO L93 Difference]: Finished difference Result 790 states and 1958 transitions. [2020-11-11 18:05:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:05:16,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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 [2020-11-11 18:05:16,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:16,601 INFO L225 Difference]: With dead ends: 790 [2020-11-11 18:05:16,601 INFO L226 Difference]: Without dead ends: 445 [2020-11-11 18:05:16,601 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:05:16,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-11-11 18:05:16,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2020-11-11 18:05:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 2.3896396396396398) internal successors, (1061), 444 states have internal predecessors, (1061), 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) [2020-11-11 18:05:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1061 transitions. [2020-11-11 18:05:16,618 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1061 transitions. Word has length 41 [2020-11-11 18:05:16,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:16,619 INFO L481 AbstractCegarLoop]: Abstraction has 445 states and 1061 transitions. [2020-11-11 18:05:16,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2020-11-11 18:05:16,619 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1061 transitions. [2020-11-11 18:05:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:05:16,621 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:16,621 INFO L494 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] [2020-11-11 18:05:16,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:05:16,621 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2020-11-11 18:05:16,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:16,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719816371] [2020-11-11 18:05:16,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:16,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:16,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719816371] [2020-11-11 18:05:16,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:16,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:05:16,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889887251] [2020-11-11 18:05:16,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:05:16,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:16,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:05:16,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:05:16,744 INFO L87 Difference]: Start difference. First operand 445 states and 1061 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) [2020-11-11 18:05:16,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:16,897 INFO L93 Difference]: Finished difference Result 365 states and 857 transitions. [2020-11-11 18:05:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:05:16,897 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 [2020-11-11 18:05:16,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:16,898 INFO L225 Difference]: With dead ends: 365 [2020-11-11 18:05:16,898 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:05:16,899 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:05:16,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:05:16,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:05:16,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2020-11-11 18:05:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:05:16,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-11-11 18:05:16,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:16,900 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:05:16,900 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) [2020-11-11 18:05:16,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:05:16,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:05:16,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:05:16,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:05:16 BasicIcfg [2020-11-11 18:05:16,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:05:16,909 INFO L168 Benchmark]: Toolchain (without parser) took 3931.33 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 236.0 MB in the end (delta: 40.4 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:16,910 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:05:16,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.40 ms. Allocated memory is still 302.0 MB. Free memory was 275.9 MB in the beginning and 277.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:16,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.96 ms. Allocated memory is still 302.0 MB. Free memory was 277.5 MB in the beginning and 275.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:16,912 INFO L168 Benchmark]: Boogie Preprocessor took 59.45 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 273.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:16,913 INFO L168 Benchmark]: RCFGBuilder took 675.93 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 252.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:16,914 INFO L168 Benchmark]: TraceAbstraction took 2384.71 ms. Allocated memory is still 302.0 MB. Free memory was 251.9 MB in the beginning and 236.0 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:16,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 701.40 ms. Allocated memory is still 302.0 MB. Free memory was 275.9 MB in the beginning and 277.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 91.96 ms. Allocated memory is still 302.0 MB. Free memory was 277.5 MB in the beginning and 275.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.45 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 273.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 675.93 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 252.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2384.71 ms. Allocated memory is still 302.0 MB. Free memory was 251.9 MB in the beginning and 236.0 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 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, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 297 SDtfs, 381 SDslu, 926 SDs, 0 SdLazy, 92 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...