/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/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:52:22,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:52:22,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:52:23,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:52:23,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:52:23,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:52:23,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:52:23,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:52:23,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:52:23,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:52:23,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:52:23,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:52:23,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:52:23,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:52:23,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:52:23,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:52:23,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:52:23,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:52:23,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:52:23,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:52:23,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:52:23,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:52:23,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:52:23,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:52:23,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:52:23,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:52:23,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:52:23,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:52:23,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:52:23,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:52:23,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:52:23,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:52:23,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:52:23,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:52:23,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:52:23,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:52:23,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:52:23,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:52:23,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:52:23,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:52:23,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:52:23,104 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 [2021-01-20 14:52:23,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:52:23,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:52:23,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:52:23,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:52:23,159 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:52:23,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:52:23,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:52:23,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:52:23,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:52:23,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:52:23,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:52:23,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:52:23,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:52:23,163 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:52:23,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:52:23,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:52:23,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:52:23,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:52:23,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:52:23,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:52:23,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:52:23,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:52:23,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:52:23,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:52:23,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:52:23,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:52:23,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:52:23,166 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:52:23,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:52:23,166 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:52:23,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:52:23,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:52:23,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:52:23,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:52:23,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:52:23,615 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:52:23,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2021-01-20 14:52:23,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d734cc9e/bdf7b28f04494ac084eb42e70b89c2c5/FLAGa9af2587e [2021-01-20 14:52:24,355 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:52:24,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2021-01-20 14:52:24,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d734cc9e/bdf7b28f04494ac084eb42e70b89c2c5/FLAGa9af2587e [2021-01-20 14:52:24,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d734cc9e/bdf7b28f04494ac084eb42e70b89c2c5 [2021-01-20 14:52:24,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:52:24,614 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:52:24,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:24,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:52:24,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:52:24,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:24" (1/1) ... [2021-01-20 14:52:24,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4485a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:24, skipping insertion in model container [2021-01-20 14:52:24,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:24" (1/1) ... [2021-01-20 14:52:24,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:52:24,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:52:25,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:25,082 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:52:25,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:25,270 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:52:25,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25 WrapperNode [2021-01-20 14:52:25,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:25,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:25,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:52:25,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:52:25,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:25,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:52:25,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:52:25,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:52:25,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (1/1) ... [2021-01-20 14:52:25,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:52:25,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:52:25,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:52:25,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:52:25,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (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 [2021-01-20 14:52:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:52:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:52:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:52:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:52:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:52:25,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:52:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:52:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:52:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:52:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:52:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:52:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:52:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:52:25,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:52:25,497 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:52:26,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:52:26,025 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:52:26,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:26 BoogieIcfgContainer [2021-01-20 14:52:26,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:52:26,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:52:26,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:52:26,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:52:26,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:52:24" (1/3) ... [2021-01-20 14:52:26,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36efc88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:26, skipping insertion in model container [2021-01-20 14:52:26,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:25" (2/3) ... [2021-01-20 14:52:26,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36efc88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:26, skipping insertion in model container [2021-01-20 14:52:26,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:26" (3/3) ... [2021-01-20 14:52:26,039 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2021-01-20 14:52:26,055 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:52:26,055 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:52:26,059 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:52:26,060 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:52:26,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,109 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,109 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,114 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,114 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,139 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,146 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,146 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:26,149 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:52:26,162 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:52:26,198 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:52:26,199 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:52:26,199 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:52:26,199 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:52:26,199 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:52:26,199 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:52:26,199 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:52:26,199 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:52:26,215 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-20 14:52:26,972 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) [2021-01-20 14:52:27,012 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) [2021-01-20 14:52:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 14:52:27,070 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:27,070 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] [2021-01-20 14:52:27,071 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:27,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:27,078 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2021-01-20 14:52:27,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:27,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194166223] [2021-01-20 14:52:27,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:27,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194166223] [2021-01-20 14:52:27,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:27,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:52:27,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79555349] [2021-01-20 14:52:27,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:52:27,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:27,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:52:27,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:52:27,646 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) [2021-01-20 14:52:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:28,061 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2021-01-20 14:52:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:52:28,063 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 [2021-01-20 14:52:28,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:28,126 INFO L225 Difference]: With dead ends: 12201 [2021-01-20 14:52:28,126 INFO L226 Difference]: Without dead ends: 4606 [2021-01-20 14:52:28,128 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 [2021-01-20 14:52:28,128 INFO L78 Accepts]: Start accepts. Automaton has 4606 states. Word has length 43 [2021-01-20 14:52:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:28,130 INFO L481 AbstractCegarLoop]: Abstraction has 4606 states. [2021-01-20 14:52:28,130 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) [2021-01-20 14:52:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states. [2021-01-20 14:52:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 14:52:28,146 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:28,146 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] [2021-01-20 14:52:28,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:52:28,146 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:28,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2021-01-20 14:52:28,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:28,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491037272] [2021-01-20 14:52:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:28,447 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2021-01-20 14:52:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:28,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491037272] [2021-01-20 14:52:28,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:28,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:28,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796078116] [2021-01-20 14:52:28,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:28,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:28,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:28,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:28,534 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) [2021-01-20 14:52:28,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:28,891 INFO L93 Difference]: Finished difference Result 5726 states and 19296 transitions. [2021-01-20 14:52:28,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:28,892 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 [2021-01-20 14:52:28,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:28,919 INFO L225 Difference]: With dead ends: 5726 [2021-01-20 14:52:28,920 INFO L226 Difference]: Without dead ends: 2871 [2021-01-20 14:52:28,921 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:28,922 INFO L78 Accepts]: Start accepts. Automaton has 2871 states. Word has length 45 [2021-01-20 14:52:28,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:28,922 INFO L481 AbstractCegarLoop]: Abstraction has 2871 states. [2021-01-20 14:52:28,922 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) [2021-01-20 14:52:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states. [2021-01-20 14:52:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:52:28,935 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:28,935 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] [2021-01-20 14:52:28,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:52:28,936 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:28,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:28,937 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2021-01-20 14:52:28,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:28,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373666210] [2021-01-20 14:52:28,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:29,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373666210] [2021-01-20 14:52:29,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:29,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:29,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189886207] [2021-01-20 14:52:29,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:29,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:29,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:29,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:29,161 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) [2021-01-20 14:52:29,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:29,376 INFO L93 Difference]: Finished difference Result 3791 states and 12381 transitions. [2021-01-20 14:52:29,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:29,377 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 [2021-01-20 14:52:29,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:29,391 INFO L225 Difference]: With dead ends: 3791 [2021-01-20 14:52:29,392 INFO L226 Difference]: Without dead ends: 1761 [2021-01-20 14:52:29,392 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 [2021-01-20 14:52:29,392 INFO L78 Accepts]: Start accepts. Automaton has 1761 states. Word has length 48 [2021-01-20 14:52:29,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:29,395 INFO L481 AbstractCegarLoop]: Abstraction has 1761 states. [2021-01-20 14:52:29,395 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) [2021-01-20 14:52:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states. [2021-01-20 14:52:29,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:52:29,400 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:29,402 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] [2021-01-20 14:52:29,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:52:29,402 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:29,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:29,404 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2021-01-20 14:52:29,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:29,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116225275] [2021-01-20 14:52:29,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:29,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116225275] [2021-01-20 14:52:29,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:29,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:29,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66059890] [2021-01-20 14:52:29,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:29,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:29,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:29,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:29,586 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) [2021-01-20 14:52:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:29,750 INFO L93 Difference]: Finished difference Result 1441 states and 4503 transitions. [2021-01-20 14:52:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:29,751 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 [2021-01-20 14:52:29,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:29,752 INFO L225 Difference]: With dead ends: 1441 [2021-01-20 14:52:29,752 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:52:29,752 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 [2021-01-20 14:52:29,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 51 [2021-01-20 14:52:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:29,753 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:52:29,753 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) [2021-01-20 14:52:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:52:29,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:52:29,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:52:29,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:52:29 BasicIcfg [2021-01-20 14:52:29,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:52:29,761 INFO L168 Benchmark]: Toolchain (without parser) took 5147.25 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.2 MB in the beginning and 253.8 MB in the end (delta: 23.5 MB). Peak memory consumption was 86.6 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:29,762 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:29,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.80 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 246.2 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:29,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.02 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:29,767 INFO L168 Benchmark]: Boogie Preprocessor took 27.82 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 242.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:29,773 INFO L168 Benchmark]: RCFGBuilder took 664.39 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 262.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:29,774 INFO L168 Benchmark]: TraceAbstraction took 3727.84 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.4 MB in the beginning and 253.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 71.6 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:29,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 653.80 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 246.2 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.02 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.82 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 242.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 664.39 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 262.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3727.84 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.4 MB in the beginning and 253.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 71.6 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: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, 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, 0.9s 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, 0.8s 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...