/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/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:25:24,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:25:24,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:25:24,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:25:24,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:25:24,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:25:24,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:25:24,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:25:24,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:25:24,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:25:24,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:25:24,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:25:24,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:25:24,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:25:24,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:25:24,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:25:24,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:25:24,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:25:24,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:25:24,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:25:24,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:25:24,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:25:24,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:25:24,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:25:24,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-26 17:25:24,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-26 17:25:24,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-26 17:25:24,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-26 17:25:24,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-26 17:25:24,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-26 17:25:24,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:25:24,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:25:24,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:25:24,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:25:24,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:25:24,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:25:24,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:25:24,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:25:24,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:25:24,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:25:24,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:25:24,256 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 [2021-01-26 17:25:24,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:25:24,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:25:24,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:25:24,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:25:24,286 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:25:24,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:25:24,286 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:25:24,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:25:24,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:25:24,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:25:24,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:25:24,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:25:24,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:25:24,288 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:25:24,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:25:24,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:25:24,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:25:24,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:25:24,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:25:24,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:25:24,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:25:24,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:25:24,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:25:24,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:25:24,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:25:24,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:25:24,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:25:24,290 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:25:24,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:25:24,291 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:25:24,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:25:24,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:25:24,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:25:24,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:25:24,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:25:24,691 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:25:24,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2021-01-26 17:25:24,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11f5756d/dda55b0bdd1a4099a8d6c48f60db56f5/FLAG5e6cc7214 [2021-01-26 17:25:25,514 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:25:25,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2021-01-26 17:25:25,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11f5756d/dda55b0bdd1a4099a8d6c48f60db56f5/FLAG5e6cc7214 [2021-01-26 17:25:25,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11f5756d/dda55b0bdd1a4099a8d6c48f60db56f5 [2021-01-26 17:25:25,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:25:25,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:25:25,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:25:25,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:25:25,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:25:25,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:25:25" (1/1) ... [2021-01-26 17:25:25,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53186b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:25, skipping insertion in model container [2021-01-26 17:25:25,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:25:25" (1/1) ... [2021-01-26 17:25:25,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:25:25,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:25:26,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:25:26,251 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:25:26,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:25:26,407 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:25:26,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26 WrapperNode [2021-01-26 17:25:26,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:25:26,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:25:26,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:25:26,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:25:26,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:25:26,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:25:26,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:25:26,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:25:26,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (1/1) ... [2021-01-26 17:25:26,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:25:26,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:25:26,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:25:26,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:25:26,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (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 [2021-01-26 17:25:26,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:25:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:25:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:25:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:25:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:25:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:25:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:25:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:25:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:25:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:25:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:25:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:25:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:25:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:25:26,576 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:25:26,944 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:25:26,945 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:25:26,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:25:26 BoogieIcfgContainer [2021-01-26 17:25:26,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:25:26,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:25:26,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:25:26,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:25:26,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:25:25" (1/3) ... [2021-01-26 17:25:26,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7422797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:25:26, skipping insertion in model container [2021-01-26 17:25:26,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:25:26" (2/3) ... [2021-01-26 17:25:26,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7422797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:25:26, skipping insertion in model container [2021-01-26 17:25:26,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:25:26" (3/3) ... [2021-01-26 17:25:26,956 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2021-01-26 17:25:26,974 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:25:26,975 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:25:26,978 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:25:26,979 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:25:27,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,047 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,047 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,048 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,048 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,048 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,049 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,049 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,053 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,053 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,060 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,060 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,061 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,061 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,074 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,075 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:25:27,089 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:25:27,103 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:25:27,144 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:25:27,145 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:25:27,145 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:25:27,145 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:25:27,145 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:25:27,145 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:25:27,145 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:25:27,146 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:25:27,158 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-26 17:25:27,951 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) [2021-01-26 17:25:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 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) [2021-01-26 17:25:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-26 17:25:28,040 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:28,041 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:25:28,041 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:28,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:28,048 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2021-01-26 17:25:28,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:28,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185645551] [2021-01-26 17:25:28,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:28,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185645551] [2021-01-26 17:25:28,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:28,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:25:28,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810628907] [2021-01-26 17:25:28,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:25:28,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:28,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:25:28,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:25:28,643 INFO L87 Difference]: Start difference. First operand 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) 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) [2021-01-26 17:25:29,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:29,000 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2021-01-26 17:25:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:25:29,003 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 [2021-01-26 17:25:29,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:29,067 INFO L225 Difference]: With dead ends: 12201 [2021-01-26 17:25:29,067 INFO L226 Difference]: Without dead ends: 4606 [2021-01-26 17:25:29,069 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:25:29,069 INFO L78 Accepts]: Start accepts. Automaton has 4606 states. Word has length 43 [2021-01-26 17:25:29,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:29,071 INFO L481 AbstractCegarLoop]: Abstraction has 4606 states. [2021-01-26 17:25:29,071 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) [2021-01-26 17:25:29,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states. [2021-01-26 17:25:29,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:25:29,086 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:29,087 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:25:29,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:25:29,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:29,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2021-01-26 17:25:29,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:29,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568249256] [2021-01-26 17:25:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:29,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568249256] [2021-01-26 17:25:29,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:29,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:29,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614033169] [2021-01-26 17:25:29,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:29,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:29,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:29,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:29,356 INFO L87 Difference]: Start difference. First operand 4606 states. 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) [2021-01-26 17:25:29,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:29,634 INFO L93 Difference]: Finished difference Result 5726 states and 19296 transitions. [2021-01-26 17:25:29,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:25:29,635 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 [2021-01-26 17:25:29,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:29,663 INFO L225 Difference]: With dead ends: 5726 [2021-01-26 17:25:29,714 INFO L226 Difference]: Without dead ends: 2871 [2021-01-26 17:25:29,715 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:25:29,715 INFO L78 Accepts]: Start accepts. Automaton has 2871 states. Word has length 45 [2021-01-26 17:25:29,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:29,716 INFO L481 AbstractCegarLoop]: Abstraction has 2871 states. [2021-01-26 17:25:29,716 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) [2021-01-26 17:25:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states. [2021-01-26 17:25:29,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:25:29,728 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:29,728 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:25:29,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:25:29,729 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:29,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:29,730 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2021-01-26 17:25:29,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:29,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928834855] [2021-01-26 17:25:29,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:29,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928834855] [2021-01-26 17:25:29,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:29,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:29,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219329616] [2021-01-26 17:25:29,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:29,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:29,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:29,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:29,968 INFO L87 Difference]: Start difference. First operand 2871 states. 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) [2021-01-26 17:25:30,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:30,170 INFO L93 Difference]: Finished difference Result 3791 states and 12381 transitions. [2021-01-26 17:25:30,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:25:30,171 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 [2021-01-26 17:25:30,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:30,186 INFO L225 Difference]: With dead ends: 3791 [2021-01-26 17:25:30,186 INFO L226 Difference]: Without dead ends: 1761 [2021-01-26 17:25:30,187 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:25:30,187 INFO L78 Accepts]: Start accepts. Automaton has 1761 states. Word has length 48 [2021-01-26 17:25:30,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:30,188 INFO L481 AbstractCegarLoop]: Abstraction has 1761 states. [2021-01-26 17:25:30,188 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) [2021-01-26 17:25:30,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states. [2021-01-26 17:25:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:25:30,194 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:30,194 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:25:30,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:25:30,195 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:30,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:30,196 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2021-01-26 17:25:30,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:30,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786199769] [2021-01-26 17:25:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:30,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786199769] [2021-01-26 17:25:30,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:30,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:30,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740204626] [2021-01-26 17:25:30,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:30,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:30,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:30,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:30,361 INFO L87 Difference]: Start difference. First operand 1761 states. 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) [2021-01-26 17:25:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:30,508 INFO L93 Difference]: Finished difference Result 1441 states and 4503 transitions. [2021-01-26 17:25:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:25:30,508 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 [2021-01-26 17:25:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:30,509 INFO L225 Difference]: With dead ends: 1441 [2021-01-26 17:25:30,509 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:25:30,510 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:25:30,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 51 [2021-01-26 17:25:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:30,510 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:25:30,510 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) [2021-01-26 17:25:30,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:25:30,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:25:30,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:25:30,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:25:30 BasicIcfg [2021-01-26 17:25:30,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:25:30,518 INFO L168 Benchmark]: Toolchain (without parser) took 4776.59 ms. Allocated memory was 314.6 MB in the beginning and 438.3 MB in the end (delta: 123.7 MB). Free memory was 288.5 MB in the beginning and 330.4 MB in the end (delta: -41.9 MB). Peak memory consumption was 84.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:30,519 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 314.6 MB. Free memory was 285.5 MB in the beginning and 285.4 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:25:30,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.95 ms. Allocated memory is still 314.6 MB. Free memory was 287.6 MB in the beginning and 287.7 MB in the end (delta: -95.1 kB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:30,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 314.6 MB. Free memory was 287.7 MB in the beginning and 285.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:30,521 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 ms. Allocated memory is still 314.6 MB. Free memory was 285.8 MB in the beginning and 283.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:30,522 INFO L168 Benchmark]: RCFGBuilder took 463.06 ms. Allocated memory is still 314.6 MB. Free memory was 283.7 MB in the beginning and 260.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:30,523 INFO L168 Benchmark]: TraceAbstraction took 3567.00 ms. Allocated memory was 314.6 MB in the beginning and 438.3 MB in the end (delta: 123.7 MB). Free memory was 260.6 MB in the beginning and 330.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 54.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:30,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 314.6 MB. Free memory was 285.5 MB in the beginning and 285.4 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 652.95 ms. Allocated memory is still 314.6 MB. Free memory was 287.6 MB in the beginning and 287.7 MB in the end (delta: -95.1 kB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 314.6 MB. Free memory was 287.7 MB in the beginning and 285.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.70 ms. Allocated memory is still 314.6 MB. Free memory was 285.8 MB in the beginning and 283.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 463.06 ms. Allocated memory is still 314.6 MB. Free memory was 283.7 MB in the beginning and 260.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3567.00 ms. Allocated memory was 314.6 MB in the beginning and 438.3 MB in the end (delta: 123.7 MB). Free memory was 260.6 MB in the beginning and 330.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 54.0 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: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 406 SDtfs, 616 SDslu, 1282 SDs, 0 SdLazy, 99 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, 0.7s 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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...