/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:14:08,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:14:08,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:14:08,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:14:08,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:14:08,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:14:08,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:14:08,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:14:08,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:14:08,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:14:08,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:14:08,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:14:08,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:14:08,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:14:08,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:14:08,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:14:08,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:14:08,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:14:08,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:14:08,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:14:08,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:14:08,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:14:08,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:14:08,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:14:08,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:14:08,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:14:08,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:14:08,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:14:08,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:14:08,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:14:08,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:14:08,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:14:08,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:14:08,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:14:08,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:14:08,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:14:08,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:14:08,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:14:08,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:14:08,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:14:08,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:14:08,389 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-Delay.epf [2020-11-12 06:14:08,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:14:08,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:14:08,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:14:08,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:14:08,452 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:14:08,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:14:08,453 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:14:08,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:14:08,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:14:08,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:14:08,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:14:08,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:14:08,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:14:08,456 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:14:08,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:14:08,456 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:14:08,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:14:08,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:14:08,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:14:08,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:14:08,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:14:08,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:14:08,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:14:08,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:14:08,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:14:08,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:14:08,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:14:08,459 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:14:08,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:14:08,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:14:08,460 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:14:08,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:14:08,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:14:08,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:14:08,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:14:08,966 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:14:08,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-11-12 06:14:09,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3440f5ce/dabbc550a19b4a048b997aacaea5ec61/FLAG8065d45a8 [2020-11-12 06:14:09,876 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:14:09,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-11-12 06:14:09,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3440f5ce/dabbc550a19b4a048b997aacaea5ec61/FLAG8065d45a8 [2020-11-12 06:14:10,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3440f5ce/dabbc550a19b4a048b997aacaea5ec61 [2020-11-12 06:14:10,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:14:10,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:14:10,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:14:10,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:14:10,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:14:10,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a732486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10, skipping insertion in model container [2020-11-12 06:14:10,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:14:10,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:14:10,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:14:10,614 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:14:10,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:14:10,808 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:14:10,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10 WrapperNode [2020-11-12 06:14:10,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:14:10,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:14:10,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:14:10,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:14:10,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:14:10,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:14:10,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:14:10,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:14:10,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (1/1) ... [2020-11-12 06:14:10,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:14:10,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:14:10,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:14:10,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:14:10,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (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 [2020-11-12 06:14:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:14:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:14:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:14:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:14:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:14:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:14:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:14:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:14:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:14:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:14:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:14:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:14:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:14:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:14:11,012 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:14:11,560 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:14:11,560 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:14:11,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:11 BoogieIcfgContainer [2020-11-12 06:14:11,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:14:11,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:14:11,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:14:11,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:14:11,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:14:10" (1/3) ... [2020-11-12 06:14:11,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7c3e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:11, skipping insertion in model container [2020-11-12 06:14:11,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:10" (2/3) ... [2020-11-12 06:14:11,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7c3e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:11, skipping insertion in model container [2020-11-12 06:14:11,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:11" (3/3) ... [2020-11-12 06:14:11,574 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2020-11-12 06:14:11,591 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:14:11,591 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:14:11,595 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:14:11,596 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:14:11,636 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,636 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,636 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,637 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,637 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,637 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,639 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,643 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,643 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,654 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,655 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,659 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,659 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:11,665 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:14:11,679 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:14:11,706 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:14:11,706 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:14:11,706 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:14:11,706 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:14:11,706 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:14:11,707 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:14:11,707 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:14:11,707 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:14:11,721 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-11-12 06:14:12,637 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-11-12 06:14:13,292 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 651ms [2020-11-12 06:14:13,330 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-11-12 06:14:13,415 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9849 states, 9113 states have (on average 1.3896631186217492) internal successors, (12664), 9848 states have internal predecessors, (12664), 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) [2020-11-12 06:14:13,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9113 states have (on average 1.3896631186217492) internal successors, (12664), 9848 states have internal predecessors, (12664), 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) [2020-11-12 06:14:13,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 06:14:13,456 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:13,457 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] [2020-11-12 06:14:13,457 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:13,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:13,464 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2020-11-12 06:14:13,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:13,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936227631] [2020-11-12 06:14:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:13,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936227631] [2020-11-12 06:14:13,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:13,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:14:13,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960234420] [2020-11-12 06:14:13,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:14:13,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:13,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:14:13,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:14:13,919 INFO L87 Difference]: Start difference. First operand has 9849 states, 9113 states have (on average 1.3896631186217492) internal successors, (12664), 9848 states have internal predecessors, (12664), 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 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-11-12 06:14:14,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:14,209 INFO L93 Difference]: Finished difference Result 12201 states and 14288 transitions. [2020-11-12 06:14:14,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:14:14,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2020-11-12 06:14:14,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:14,258 INFO L225 Difference]: With dead ends: 12201 [2020-11-12 06:14:14,259 INFO L226 Difference]: Without dead ends: 3709 [2020-11-12 06:14:14,262 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 [2020-11-12 06:14:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2020-11-12 06:14:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2020-11-12 06:14:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3464 states have (on average 1.4581408775981524) internal successors, (5051), 3708 states have internal predecessors, (5051), 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) [2020-11-12 06:14:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5051 transitions. [2020-11-12 06:14:14,567 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5051 transitions. Word has length 43 [2020-11-12 06:14:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:14,569 INFO L481 AbstractCegarLoop]: Abstraction has 3709 states and 5051 transitions. [2020-11-12 06:14:14,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-11-12 06:14:14,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5051 transitions. [2020-11-12 06:14:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:14:14,581 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:14,581 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, 1] [2020-11-12 06:14:14,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:14:14,590 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:14,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:14,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2020-11-12 06:14:14,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:14,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753632752] [2020-11-12 06:14:14,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:14,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753632752] [2020-11-12 06:14:14,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:14,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:14,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916439477] [2020-11-12 06:14:14,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:14,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:14,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:14,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:14,769 INFO L87 Difference]: Start difference. First operand 3709 states and 5051 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2020-11-12 06:14:15,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:15,026 INFO L93 Difference]: Finished difference Result 4689 states and 6859 transitions. [2020-11-12 06:14:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:15,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2020-11-12 06:14:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:15,037 INFO L225 Difference]: With dead ends: 4689 [2020-11-12 06:14:15,037 INFO L226 Difference]: Without dead ends: 2049 [2020-11-12 06:14:15,038 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:14:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2020-11-12 06:14:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2049. [2020-11-12 06:14:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1909 states have (on average 1.5123101100052383) internal successors, (2887), 2048 states have internal predecessors, (2887), 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) [2020-11-12 06:14:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2887 transitions. [2020-11-12 06:14:15,093 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2887 transitions. Word has length 45 [2020-11-12 06:14:15,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:15,094 INFO L481 AbstractCegarLoop]: Abstraction has 2049 states and 2887 transitions. [2020-11-12 06:14:15,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2020-11-12 06:14:15,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2887 transitions. [2020-11-12 06:14:15,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 06:14:15,098 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:15,098 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, 1, 1, 1, 1] [2020-11-12 06:14:15,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:14:15,099 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:15,099 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2020-11-12 06:14:15,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:15,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237308524] [2020-11-12 06:14:15,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:15,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237308524] [2020-11-12 06:14:15,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:15,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:15,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072798766] [2020-11-12 06:14:15,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:15,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:15,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:15,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:15,258 INFO L87 Difference]: Start difference. First operand 2049 states and 2887 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 06:14:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:15,485 INFO L93 Difference]: Finished difference Result 2617 states and 3986 transitions. [2020-11-12 06:14:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:15,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2020-11-12 06:14:15,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:15,493 INFO L225 Difference]: With dead ends: 2617 [2020-11-12 06:14:15,493 INFO L226 Difference]: Without dead ends: 1185 [2020-11-12 06:14:15,494 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:14:15,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2020-11-12 06:14:15,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2020-11-12 06:14:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1105 states have (on average 1.555656108597285) internal successors, (1719), 1184 states have internal predecessors, (1719), 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) [2020-11-12 06:14:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1719 transitions. [2020-11-12 06:14:15,528 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1719 transitions. Word has length 48 [2020-11-12 06:14:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:15,528 INFO L481 AbstractCegarLoop]: Abstraction has 1185 states and 1719 transitions. [2020-11-12 06:14:15,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 06:14:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1719 transitions. [2020-11-12 06:14:15,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:14:15,531 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:15,532 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:15,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:14:15,532 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:15,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:15,533 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2020-11-12 06:14:15,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:15,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84788433] [2020-11-12 06:14:15,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:15,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84788433] [2020-11-12 06:14:15,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:15,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:15,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578722697] [2020-11-12 06:14:15,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:15,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:15,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:15,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:15,707 INFO L87 Difference]: Start difference. First operand 1185 states and 1719 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-11-12 06:14:15,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:15,905 INFO L93 Difference]: Finished difference Result 865 states and 1399 transitions. [2020-11-12 06:14:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:15,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2020-11-12 06:14:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:15,906 INFO L225 Difference]: With dead ends: 865 [2020-11-12 06:14:15,906 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:14:15,906 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 [2020-11-12 06:14:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:14:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:14:15,907 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) [2020-11-12 06:14:15,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:14:15,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-11-12 06:14:15,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:15,908 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:14:15,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-11-12 06:14:15,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:14:15,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:14:15,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:14:15,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:14:15 BasicIcfg [2020-11-12 06:14:15,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:14:15,917 INFO L168 Benchmark]: Toolchain (without parser) took 5813.33 ms. Allocated memory was 312.5 MB in the beginning and 589.3 MB in the end (delta: 276.8 MB). Free memory was 285.9 MB in the beginning and 513.7 MB in the end (delta: -227.8 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:15,918 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 312.5 MB. Free memory is still 281.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:14:15,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.41 ms. Allocated memory is still 312.5 MB. Free memory was 285.3 MB in the beginning and 287.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:15,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 312.5 MB. Free memory was 287.3 MB in the beginning and 285.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:15,920 INFO L168 Benchmark]: Boogie Preprocessor took 30.74 ms. Allocated memory is still 312.5 MB. Free memory was 285.2 MB in the beginning and 283.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:15,921 INFO L168 Benchmark]: RCFGBuilder took 670.13 ms. Allocated memory is still 312.5 MB. Free memory was 283.1 MB in the beginning and 261.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:15,922 INFO L168 Benchmark]: TraceAbstraction took 4349.11 ms. Allocated memory was 312.5 MB in the beginning and 589.3 MB in the end (delta: 276.8 MB). Free memory was 260.0 MB in the beginning and 513.7 MB in the end (delta: -253.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:15,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 312.5 MB. Free memory is still 281.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 699.41 ms. Allocated memory is still 312.5 MB. Free memory was 285.3 MB in the beginning and 287.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 312.5 MB. Free memory was 287.3 MB in the beginning and 285.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.74 ms. Allocated memory is still 312.5 MB. Free memory was 285.2 MB in the beginning and 283.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 670.13 ms. Allocated memory is still 312.5 MB. Free memory was 283.1 MB in the beginning and 261.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4349.11 ms. Allocated memory was 312.5 MB in the beginning and 589.3 MB in the end (delta: 276.8 MB). Free memory was 260.0 MB in the beginning and 513.7 MB in the end (delta: -253.7 MB). Peak memory consumption was 23.1 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 286 SDtfs, 420 SDslu, 1109 SDs, 0 SdLazy, 91 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 23913 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...