/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/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:16:59,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:16:59,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:16:59,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:16:59,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:16:59,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:16:59,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:16:59,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:16:59,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:16:59,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:16:59,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:16:59,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:16:59,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:16:59,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:16:59,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:16:59,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:16:59,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:16:59,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:16:59,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:16:59,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:16:59,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:16:59,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:16:59,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:16:59,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:16:59,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:16:59,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:16:59,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:16:59,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:16:59,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:16:59,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:16:59,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:16:59,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:16:59,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:16:59,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:16:59,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:16:59,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:16:59,590 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 18:16:59,623 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:16:59,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:16:59,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:16:59,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:16:59,626 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:16:59,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:16:59,627 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:16:59,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:16:59,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:16:59,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:16:59,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:16:59,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:16:59,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:16:59,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:16:59,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:16:59,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:16:59,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:16:59,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:16:59,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:16:59,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:16:59,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:16:59,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:16:59,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:16:59,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:16:59,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:16:59,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:16:59,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:16:59,635 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:16:59,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:16:59,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:17:00,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:17:00,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:17:00,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:17:00,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:17:00,063 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:17:00,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-11-11 18:17:00,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6811cd6/f32899ad4e4842bcae1134cdeb2bd7bc/FLAG5907bf958 [2020-11-11 18:17:00,874 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:17:00,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-11-11 18:17:00,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6811cd6/f32899ad4e4842bcae1134cdeb2bd7bc/FLAG5907bf958 [2020-11-11 18:17:01,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6811cd6/f32899ad4e4842bcae1134cdeb2bd7bc [2020-11-11 18:17:01,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:17:01,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:17:01,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:01,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:17:01,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:17:01,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d90d554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01, skipping insertion in model container [2020-11-11 18:17:01,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:17:01,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:17:01,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:01,645 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:17:01,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:01,861 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:17:01,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01 WrapperNode [2020-11-11 18:17:01,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:01,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:01,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:17:01,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:17:01,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:01,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:17:01,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:17:01,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:17:01,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:17:01,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:17:01,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:17:01,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:17:01,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (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 18:17:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:17:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:17:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:17:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:17:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:17:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:17:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:17:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:17:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:17:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:17:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:17:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:17:02,045 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 18:17:02,429 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:17:02,429 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:17:02,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:02 BoogieIcfgContainer [2020-11-11 18:17:02,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:17:02,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:17:02,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:17:02,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:17:02,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:17:01" (1/3) ... [2020-11-11 18:17:02,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a483d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:02, skipping insertion in model container [2020-11-11 18:17:02,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01" (2/3) ... [2020-11-11 18:17:02,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a483d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:02, skipping insertion in model container [2020-11-11 18:17:02,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:02" (3/3) ... [2020-11-11 18:17:02,441 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2020-11-11 18:17:02,459 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:17:02,459 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:17:02,464 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:17:02,465 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:17:02,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,497 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,498 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,498 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,498 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,500 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,500 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,501 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,501 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,501 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,501 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,505 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,505 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,514 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,514 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:02,521 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:17:02,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-11 18:17:02,560 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:17:02,560 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:17:02,560 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:17:02,560 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:17:02,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:17:02,561 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:17:02,561 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:17:02,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:17:02,573 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-11-11 18:17:02,660 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) [2020-11-11 18:17:02,668 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) [2020-11-11 18:17:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-11 18:17:02,687 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:02,688 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] [2020-11-11 18:17:02,689 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:02,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:02,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1850588041, now seen corresponding path program 1 times [2020-11-11 18:17:02,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:02,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555558350] [2020-11-11 18:17:02,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:03,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555558350] [2020-11-11 18:17:03,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:03,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:03,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060997328] [2020-11-11 18:17:03,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:03,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:03,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:03,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:03,207 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) [2020-11-11 18:17:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:03,429 INFO L93 Difference]: Finished difference Result 1714 states and 4478 transitions. [2020-11-11 18:17:03,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:03,431 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 [2020-11-11 18:17:03,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:03,466 INFO L225 Difference]: With dead ends: 1714 [2020-11-11 18:17:03,467 INFO L226 Difference]: Without dead ends: 733 [2020-11-11 18:17:03,468 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 18:17:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-11-11 18:17:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2020-11-11 18:17:03,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 2.557377049180328) internal successors, (1872), 732 states have internal predecessors, (1872), 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 18:17:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1872 transitions. [2020-11-11 18:17:03,615 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1872 transitions. Word has length 36 [2020-11-11 18:17:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:03,616 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 1872 transitions. [2020-11-11 18:17:03,617 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) [2020-11-11 18:17:03,618 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1872 transitions. [2020-11-11 18:17:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-11 18:17:03,626 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:03,626 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] [2020-11-11 18:17:03,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:17:03,627 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:03,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:03,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1562684454, now seen corresponding path program 1 times [2020-11-11 18:17:03,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:03,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075004723] [2020-11-11 18:17:03,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:03,819 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 18:17:03,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075004723] [2020-11-11 18:17:03,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:03,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:03,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629103753] [2020-11-11 18:17:03,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:03,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:03,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:03,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:03,824 INFO L87 Difference]: Start difference. First operand 733 states and 1872 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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) [2020-11-11 18:17:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:03,977 INFO L93 Difference]: Finished difference Result 769 states and 1891 transitions. [2020-11-11 18:17:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:03,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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 [2020-11-11 18:17:03,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:03,983 INFO L225 Difference]: With dead ends: 769 [2020-11-11 18:17:03,983 INFO L226 Difference]: Without dead ends: 573 [2020-11-11 18:17:03,984 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:03,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-11-11 18:17:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2020-11-11 18:17:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 2.4335664335664338) internal successors, (1392), 572 states have internal predecessors, (1392), 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 18:17:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 1392 transitions. [2020-11-11 18:17:04,011 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 1392 transitions. Word has length 38 [2020-11-11 18:17:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:04,011 INFO L481 AbstractCegarLoop]: Abstraction has 573 states and 1392 transitions. [2020-11-11 18:17:04,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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) [2020-11-11 18:17:04,012 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 1392 transitions. [2020-11-11 18:17:04,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-11 18:17:04,014 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:04,014 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] [2020-11-11 18:17:04,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:17:04,014 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:04,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:04,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1629268999, now seen corresponding path program 1 times [2020-11-11 18:17:04,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:04,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551354487] [2020-11-11 18:17:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:04,137 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 18:17:04,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551354487] [2020-11-11 18:17:04,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:04,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:04,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13955526] [2020-11-11 18:17:04,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:04,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:04,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:04,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:04,140 INFO L87 Difference]: Start difference. First operand 573 states and 1392 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 18:17:04,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:04,283 INFO L93 Difference]: Finished difference Result 907 states and 2168 transitions. [2020-11-11 18:17:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:04,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2020-11-11 18:17:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:04,288 INFO L225 Difference]: With dead ends: 907 [2020-11-11 18:17:04,288 INFO L226 Difference]: Without dead ends: 621 [2020-11-11 18:17:04,289 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 18:17:04,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-11-11 18:17:04,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 525. [2020-11-11 18:17:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 2.364503816793893) internal successors, (1239), 524 states have internal predecessors, (1239), 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 18:17:04,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 1239 transitions. [2020-11-11 18:17:04,342 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 1239 transitions. Word has length 40 [2020-11-11 18:17:04,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:04,343 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 1239 transitions. [2020-11-11 18:17:04,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 18:17:04,343 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 1239 transitions. [2020-11-11 18:17:04,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-11 18:17:04,346 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:04,346 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] [2020-11-11 18:17:04,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:17:04,347 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:04,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:04,349 INFO L82 PathProgramCache]: Analyzing trace with hash 252127285, now seen corresponding path program 1 times [2020-11-11 18:17:04,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:04,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329979547] [2020-11-11 18:17:04,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:04,558 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 18:17:04,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329979547] [2020-11-11 18:17:04,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:04,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:04,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095580133] [2020-11-11 18:17:04,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:04,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:04,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:04,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:04,561 INFO L87 Difference]: Start difference. First operand 525 states and 1239 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 18:17:04,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:04,703 INFO L93 Difference]: Finished difference Result 393 states and 869 transitions. [2020-11-11 18:17:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:17:04,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2020-11-11 18:17:04,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:04,705 INFO L225 Difference]: With dead ends: 393 [2020-11-11 18:17:04,705 INFO L226 Difference]: Without dead ends: 211 [2020-11-11 18:17:04,706 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:17:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-11-11 18:17:04,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-11-11 18:17:04,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 2.119047619047619) internal successors, (445), 210 states have internal predecessors, (445), 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 18:17:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 445 transitions. [2020-11-11 18:17:04,716 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 445 transitions. Word has length 40 [2020-11-11 18:17:04,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:04,718 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 445 transitions. [2020-11-11 18:17:04,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 18:17:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 445 transitions. [2020-11-11 18:17:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:17:04,719 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:04,720 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, 1, 1] [2020-11-11 18:17:04,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:17:04,720 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:04,720 INFO L82 PathProgramCache]: Analyzing trace with hash -163535177, now seen corresponding path program 1 times [2020-11-11 18:17:04,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:04,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501893256] [2020-11-11 18:17:04,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:04,834 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 18:17:04,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501893256] [2020-11-11 18:17:04,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:04,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:04,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408964661] [2020-11-11 18:17:04,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:04,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:04,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:04,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:04,838 INFO L87 Difference]: Start difference. First operand 211 states and 445 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2020-11-11 18:17:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:04,918 INFO L93 Difference]: Finished difference Result 175 states and 361 transitions. [2020-11-11 18:17:04,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:17:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 [2020-11-11 18:17:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:04,919 INFO L225 Difference]: With dead ends: 175 [2020-11-11 18:17:04,919 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:17:04,920 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:04,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:17:04,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:17:04,920 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 18:17:04,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:17:04,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-11-11 18:17:04,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:04,921 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:17:04,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2020-11-11 18:17:04,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:17:04,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:17:04,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:17:04,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:17:04 BasicIcfg [2020-11-11 18:17:04,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:17:04,930 INFO L168 Benchmark]: Toolchain (without parser) took 3824.44 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 207.6 MB in the end (delta: 68.7 MB). Peak memory consumption was 71.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:04,930 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:17:04,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.62 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 277.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:04,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.21 ms. Allocated memory is still 302.0 MB. Free memory was 277.4 MB in the beginning and 275.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:04,933 INFO L168 Benchmark]: Boogie Preprocessor took 28.25 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 274.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:04,934 INFO L168 Benchmark]: RCFGBuilder took 472.68 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 253.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:04,935 INFO L168 Benchmark]: TraceAbstraction took 2493.99 ms. Allocated memory is still 302.0 MB. Free memory was 253.3 MB in the beginning and 207.6 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:04,939 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 273.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 748.62 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 277.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.21 ms. Allocated memory is still 302.0 MB. Free memory was 277.4 MB in the beginning and 275.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.25 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 274.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 472.68 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 253.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2493.99 ms. Allocated memory is still 302.0 MB. Free memory was 253.3 MB in the beginning and 207.6 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 360 SDtfs, 425 SDslu, 1124 SDs, 0 SdLazy, 147 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1320occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 19259 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...