/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/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:22:46,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:22:46,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:22:46,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:22:46,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:22:46,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:22:46,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:22:46,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:22:46,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:22:46,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:22:46,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:22:46,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:22:46,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:22:46,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:22:46,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:22:46,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:22:46,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:22:46,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:22:46,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:22:46,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:22:46,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:22:46,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:22:46,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:22:46,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:22:46,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:22:46,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:22:46,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:22:46,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:22:46,535 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 17:22:46,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:22:46,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:22:46,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:22:46,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:22:46,600 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:22:46,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:22:46,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:22:46,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:22:46,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:22:46,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:22:46,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:22:46,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:22:46,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:22:46,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:22:46,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:22:46,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:22:46,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:22:46,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:22:46,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:22:46,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:22:46,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:22:46,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:22:46,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:22:46,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:22:46,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:22:46,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:22:46,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:22:46,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:22:46,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:22:46,606 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:22:46,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:22:47,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:22:47,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:22:47,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:22:47,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:22:47,090 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:22:47,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-01-26 17:22:47,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e53700ed/f8bc96ffd9f746cb88e72cc4864ef2f1/FLAG8cd9ae236 [2021-01-26 17:22:47,956 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:22:47,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-01-26 17:22:47,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e53700ed/f8bc96ffd9f746cb88e72cc4864ef2f1/FLAG8cd9ae236 [2021-01-26 17:22:48,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e53700ed/f8bc96ffd9f746cb88e72cc4864ef2f1 [2021-01-26 17:22:48,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:22:48,206 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:22:48,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:22:48,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:22:48,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:22:48,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29895cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48, skipping insertion in model container [2021-01-26 17:22:48,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:22:48,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:22:48,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:22:48,658 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:22:48,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:22:48,850 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:22:48,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48 WrapperNode [2021-01-26 17:22:48,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:22:48,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:22:48,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:22:48,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:22:48,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:22:48,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:22:48,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:22:48,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:22:48,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (1/1) ... [2021-01-26 17:22:48,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:22:48,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:22:48,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:22:48,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:22:48,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (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 17:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:22:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:22:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:22:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:22:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:22:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:22:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:22:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:22:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:22:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:22:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:22:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:22:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:22:49,015 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 17:22:49,419 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:22:49,420 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:22:49,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:22:49 BoogieIcfgContainer [2021-01-26 17:22:49,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:22:49,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:22:49,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:22:49,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:22:49,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:22:48" (1/3) ... [2021-01-26 17:22:49,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8e1f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:22:49, skipping insertion in model container [2021-01-26 17:22:49,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:22:48" (2/3) ... [2021-01-26 17:22:49,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8e1f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:22:49, skipping insertion in model container [2021-01-26 17:22:49,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:22:49" (3/3) ... [2021-01-26 17:22:49,432 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2021-01-26 17:22:49,450 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:22:49,451 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:22:49,455 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:22:49,456 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:22:49,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,489 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,489 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,492 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,497 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,507 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,508 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,508 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:22:49,514 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:22:49,529 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:22:49,572 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:22:49,572 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:22:49,572 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:22:49,573 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:22:49,573 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:22:49,573 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:22:49,573 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:22:49,573 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:22:49,587 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-26 17:22:50,727 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 17:22:50,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 17:22:50,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:22:50,829 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:22:50,830 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] [2021-01-26 17:22:50,831 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:22:50,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:22:50,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2021-01-26 17:22:50,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:22:50,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531139486] [2021-01-26 17:22:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:22:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:22:51,334 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 17:22:51,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531139486] [2021-01-26 17:22:51,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:22:51,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:22:51,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28913214] [2021-01-26 17:22:51,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:22:51,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:22:51,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:22:51,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:22:51,385 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:22:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:22:51,861 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2021-01-26 17:22:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:22:51,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-26 17:22:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:22:51,952 INFO L225 Difference]: With dead ends: 12200 [2021-01-26 17:22:51,952 INFO L226 Difference]: Without dead ends: 4605 [2021-01-26 17:22:51,954 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 17:22:51,954 INFO L78 Accepts]: Start accepts. Automaton has 4605 states. Word has length 42 [2021-01-26 17:22:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:22:51,956 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states. [2021-01-26 17:22:51,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:22:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states. [2021-01-26 17:22:51,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-26 17:22:51,975 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:22:51,975 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] [2021-01-26 17:22:51,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:22:51,976 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:22:51,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:22:51,977 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2021-01-26 17:22:51,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:22:51,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085569712] [2021-01-26 17:22:51,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:22:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:22:52,167 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 17:22:52,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085569712] [2021-01-26 17:22:52,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:22:52,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:22:52,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394923220] [2021-01-26 17:22:52,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:22:52,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:22:52,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:22:52,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:22:52,172 INFO L87 Difference]: Start difference. First operand 4605 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:22:52,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:22:52,530 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2021-01-26 17:22:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:22:52,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-01-26 17:22:52,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:22:52,557 INFO L225 Difference]: With dead ends: 5725 [2021-01-26 17:22:52,557 INFO L226 Difference]: Without dead ends: 3030 [2021-01-26 17:22:52,558 INFO L769 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 [2021-01-26 17:22:52,558 INFO L78 Accepts]: Start accepts. Automaton has 3030 states. Word has length 44 [2021-01-26 17:22:52,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:22:52,559 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states. [2021-01-26 17:22:52,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:22:52,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states. [2021-01-26 17:22:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:22:52,569 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:22:52,569 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] [2021-01-26 17:22:52,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:22:52,569 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:22:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:22:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2021-01-26 17:22:52,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:22:52,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303925362] [2021-01-26 17:22:52,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:22:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:22:52,691 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 17:22:52,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303925362] [2021-01-26 17:22:52,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:22:52,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:22:52,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622911145] [2021-01-26 17:22:52,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:22:52,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:22:52,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:22:52,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:22:52,694 INFO L87 Difference]: Start difference. First operand 3030 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 17:22:52,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:22:52,867 INFO L93 Difference]: Finished difference Result 3366 states and 10910 transitions. [2021-01-26 17:22:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:22:52,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2021-01-26 17:22:52,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:22:52,890 INFO L225 Difference]: With dead ends: 3366 [2021-01-26 17:22:52,891 INFO L226 Difference]: Without dead ends: 2806 [2021-01-26 17:22:52,891 INFO L769 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 [2021-01-26 17:22:52,891 INFO L78 Accepts]: Start accepts. Automaton has 2806 states. Word has length 47 [2021-01-26 17:22:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:22:52,892 INFO L481 AbstractCegarLoop]: Abstraction has 2806 states. [2021-01-26 17:22:52,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 17:22:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states. [2021-01-26 17:22:52,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:22:52,902 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:22:52,902 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 17:22:52,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:22:52,902 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:22:52,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:22:52,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2021-01-26 17:22:52,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:22:52,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839470185] [2021-01-26 17:22:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:22:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:22:53,094 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 17:22:53,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839470185] [2021-01-26 17:22:53,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:22:53,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:22:53,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577528719] [2021-01-26 17:22:53,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:22:53,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:22:53,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:22:53,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:22:53,098 INFO L87 Difference]: Start difference. First operand 2806 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 17:22:53,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:22:53,346 INFO L93 Difference]: Finished difference Result 3790 states and 12172 transitions. [2021-01-26 17:22:53,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:22:53,347 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 17:22:53,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:22:53,361 INFO L225 Difference]: With dead ends: 3790 [2021-01-26 17:22:53,361 INFO L226 Difference]: Without dead ends: 1732 [2021-01-26 17:22:53,362 INFO L769 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 [2021-01-26 17:22:53,362 INFO L78 Accepts]: Start accepts. Automaton has 1732 states. Word has length 48 [2021-01-26 17:22:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:22:53,362 INFO L481 AbstractCegarLoop]: Abstraction has 1732 states. [2021-01-26 17:22:53,363 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 17:22:53,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states. [2021-01-26 17:22:53,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:22:53,369 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:22:53,369 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 17:22:53,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:22:53,369 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:22:53,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:22:53,370 INFO L82 PathProgramCache]: Analyzing trace with hash 710827437, now seen corresponding path program 1 times [2021-01-26 17:22:53,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:22:53,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392472806] [2021-01-26 17:22:53,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:22:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:22:53,499 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 17:22:53,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392472806] [2021-01-26 17:22:53,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:22:53,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:22:53,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629416480] [2021-01-26 17:22:53,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:22:53,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:22:53,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:22:53,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:22:53,502 INFO L87 Difference]: Start difference. First operand 1732 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 17:22:53,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:22:53,594 INFO L93 Difference]: Finished difference Result 1476 states and 4538 transitions. [2021-01-26 17:22:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:22:53,595 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 17:22:53,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:22:53,595 INFO L225 Difference]: With dead ends: 1476 [2021-01-26 17:22:53,595 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:22:53,596 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:22:53,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 51 [2021-01-26 17:22:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:22:53,596 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:22:53,596 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 17:22:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:22:53,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:22:53,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:22:53,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:22:53 BasicIcfg [2021-01-26 17:22:53,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:22:53,605 INFO L168 Benchmark]: Toolchain (without parser) took 5408.27 ms. Allocated memory was 308.3 MB in the beginning and 681.6 MB in the end (delta: 373.3 MB). Free memory was 282.3 MB in the beginning and 530.7 MB in the end (delta: -248.4 MB). Peak memory consumption was 127.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:22:53,606 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 308.3 MB. Free memory was 278.0 MB in the beginning and 277.9 MB in the end (delta: 84.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:22:53,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.16 ms. Allocated memory is still 308.3 MB. Free memory was 281.3 MB in the beginning and 277.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.0 GB. [2021-01-26 17:22:53,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 308.3 MB. Free memory was 277.8 MB in the beginning and 275.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:22:53,609 INFO L168 Benchmark]: Boogie Preprocessor took 29.15 ms. Allocated memory is still 308.3 MB. Free memory was 275.8 MB in the beginning and 274.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:22:53,609 INFO L168 Benchmark]: RCFGBuilder took 490.56 ms. Allocated memory is still 308.3 MB. Free memory was 274.5 MB in the beginning and 251.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:22:53,610 INFO L168 Benchmark]: TraceAbstraction took 4178.09 ms. Allocated memory was 308.3 MB in the beginning and 681.6 MB in the end (delta: 373.3 MB). Free memory was 251.5 MB in the beginning and 530.7 MB in the end (delta: -279.3 MB). Peak memory consumption was 93.8 MB. Max. memory is 16.0 GB. [2021-01-26 17:22:53,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 308.3 MB. Free memory was 278.0 MB in the beginning and 277.9 MB in the end (delta: 84.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 644.16 ms. Allocated memory is still 308.3 MB. Free memory was 281.3 MB in the beginning and 277.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 308.3 MB. Free memory was 277.8 MB in the beginning and 275.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.15 ms. Allocated memory is still 308.3 MB. Free memory was 275.8 MB in the beginning and 274.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 490.56 ms. Allocated memory is still 308.3 MB. Free memory was 274.5 MB in the beginning and 251.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4178.09 ms. Allocated memory was 308.3 MB in the beginning and 681.6 MB in the end (delta: 373.3 MB). Free memory was 251.5 MB in the beginning and 530.7 MB in the end (delta: -279.3 MB). Peak memory consumption was 93.8 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 500 SDtfs, 655 SDslu, 1603 SDs, 0 SdLazy, 156 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 27837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...