/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/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:52:09,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:52:09,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:52:09,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:52:09,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:52:09,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:52:09,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:52:09,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:52:09,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:52:09,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:52:09,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:52:09,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:52:09,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:52:09,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:52:09,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:52:09,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:52:09,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:52:09,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:52:09,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:52:09,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:52:09,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:52:09,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:52:09,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:52:09,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:52:09,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:52:09,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:52:09,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:52:09,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:52:09,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:52:09,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:52:09,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:52:09,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:52:09,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:52:09,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:52:09,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:52:09,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:52:09,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:52:09,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:52:09,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:52:09,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:52:09,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:52:09,586 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 14:52:09,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:52:09,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:52:09,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:52:09,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:52:09,652 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:52:09,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:52:09,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:52:09,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:52:09,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:52:09,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:52:09,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:52:09,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:52:09,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:52:09,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:52:09,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:52:09,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:52:09,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:52:09,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:52:09,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:52:09,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:52:09,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:52:09,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:52:09,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:52:09,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:52:09,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:52:09,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:52:09,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:52:09,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:52:09,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:52:09,658 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:52:09,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:52:10,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:52:10,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:52:10,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:52:10,134 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:52:10,135 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:52:10,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2021-01-20 14:52:10,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5b855ff/1af3d72189d4485b9af146e0a013012e/FLAG0ce46affc [2021-01-20 14:52:10,922 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:52:10,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2021-01-20 14:52:10,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5b855ff/1af3d72189d4485b9af146e0a013012e/FLAG0ce46affc [2021-01-20 14:52:11,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5b855ff/1af3d72189d4485b9af146e0a013012e [2021-01-20 14:52:11,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:52:11,164 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:52:11,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:11,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:52:11,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:52:11,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:11" (1/1) ... [2021-01-20 14:52:11,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6802dcd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:11, skipping insertion in model container [2021-01-20 14:52:11,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:11" (1/1) ... [2021-01-20 14:52:11,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:52:11,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:52:11,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:11,804 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:52:11,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:12,064 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:52:12,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12 WrapperNode [2021-01-20 14:52:12,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:12,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:12,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:52:12,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:52:12,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:12,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:52:12,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:52:12,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:52:12,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (1/1) ... [2021-01-20 14:52:12,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:52:12,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:52:12,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:52:12,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:52:12,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (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 14:52:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:52:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:52:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:52:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:52:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:52:12,241 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:52:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:52:12,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:52:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:52:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:52:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:52:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:52:12,245 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 14:52:12,729 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:52:12,730 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:52:12,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:12 BoogieIcfgContainer [2021-01-20 14:52:12,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:52:12,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:52:12,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:52:12,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:52:12,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:52:11" (1/3) ... [2021-01-20 14:52:12,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cead5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:12, skipping insertion in model container [2021-01-20 14:52:12,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:12" (2/3) ... [2021-01-20 14:52:12,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cead5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:12, skipping insertion in model container [2021-01-20 14:52:12,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:12" (3/3) ... [2021-01-20 14:52:12,741 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2021-01-20 14:52:12,758 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:52:12,758 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:52:12,762 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:52:12,763 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:52:12,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,795 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,795 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,802 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,803 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,812 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,812 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:12,815 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:52:12,829 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 14:52:12,852 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:52:12,852 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:52:12,852 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:52:12,852 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:52:12,853 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:52:12,853 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:52:12,853 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:52:12,853 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:52:12,865 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2021-01-20 14:52:12,962 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 14:52:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 14:52:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-20 14:52:12,991 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:12,992 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] [2021-01-20 14:52:12,992 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:12,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:12,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2021-01-20 14:52:13,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:13,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854961715] [2021-01-20 14:52:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:13,518 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 14:52:13,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854961715] [2021-01-20 14:52:13,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:13,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:52:13,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239238749] [2021-01-20 14:52:13,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:52:13,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:13,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:52:13,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:52:13,559 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 14:52:13,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:13,989 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2021-01-20 14:52:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:52:13,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2021-01-20 14:52:13,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:14,021 INFO L225 Difference]: With dead ends: 1587 [2021-01-20 14:52:14,022 INFO L226 Difference]: Without dead ends: 670 [2021-01-20 14:52:14,024 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:52:14,025 INFO L78 Accepts]: Start accepts. Automaton has 670 states. Word has length 37 [2021-01-20 14:52:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:14,027 INFO L481 AbstractCegarLoop]: Abstraction has 670 states. [2021-01-20 14:52:14,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 14:52:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states. [2021-01-20 14:52:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-20 14:52:14,038 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:14,039 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] [2021-01-20 14:52:14,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:52:14,039 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:14,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:14,042 INFO L82 PathProgramCache]: Analyzing trace with hash -192993615, now seen corresponding path program 1 times [2021-01-20 14:52:14,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:14,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428291215] [2021-01-20 14:52:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:14,328 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 14:52:14,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428291215] [2021-01-20 14:52:14,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:14,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:52:14,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491008232] [2021-01-20 14:52:14,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:52:14,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:14,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:52:14,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:52:14,336 INFO L87 Difference]: Start difference. First operand 670 states. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 14:52:14,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:14,585 INFO L93 Difference]: Finished difference Result 730 states and 1820 transitions. [2021-01-20 14:52:14,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:52:14,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2021-01-20 14:52:14,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:14,591 INFO L225 Difference]: With dead ends: 730 [2021-01-20 14:52:14,591 INFO L226 Difference]: Without dead ends: 590 [2021-01-20 14:52:14,592 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 [2021-01-20 14:52:14,592 INFO L78 Accepts]: Start accepts. Automaton has 590 states. Word has length 39 [2021-01-20 14:52:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:14,593 INFO L481 AbstractCegarLoop]: Abstraction has 590 states. [2021-01-20 14:52:14,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 14:52:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2021-01-20 14:52:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 14:52:14,596 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:14,596 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] [2021-01-20 14:52:14,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:52:14,597 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:14,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:14,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573390, now seen corresponding path program 1 times [2021-01-20 14:52:14,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:14,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344090015] [2021-01-20 14:52:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:14,809 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 14:52:14,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344090015] [2021-01-20 14:52:14,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:14,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:14,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216011944] [2021-01-20 14:52:14,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:14,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:14,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:14,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:14,812 INFO L87 Difference]: Start difference. First operand 590 states. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 14:52:15,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:15,176 INFO L93 Difference]: Finished difference Result 790 states and 1958 transitions. [2021-01-20 14:52:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:15,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2021-01-20 14:52:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:15,182 INFO L225 Difference]: With dead ends: 790 [2021-01-20 14:52:15,182 INFO L226 Difference]: Without dead ends: 445 [2021-01-20 14:52:15,183 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:15,183 INFO L78 Accepts]: Start accepts. Automaton has 445 states. Word has length 41 [2021-01-20 14:52:15,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:15,184 INFO L481 AbstractCegarLoop]: Abstraction has 445 states. [2021-01-20 14:52:15,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 14:52:15,185 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2021-01-20 14:52:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:52:15,187 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:15,187 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] [2021-01-20 14:52:15,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:52:15,188 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:15,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:15,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2021-01-20 14:52:15,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:15,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797727904] [2021-01-20 14:52:15,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:15,489 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 14:52:15,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797727904] [2021-01-20 14:52:15,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:15,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:15,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577689423] [2021-01-20 14:52:15,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:15,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:15,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:15,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:15,493 INFO L87 Difference]: Start difference. First operand 445 states. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 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) [2021-01-20 14:52:15,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:15,702 INFO L93 Difference]: Finished difference Result 365 states and 857 transitions. [2021-01-20 14:52:15,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:15,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 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 [2021-01-20 14:52:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:15,708 INFO L225 Difference]: With dead ends: 365 [2021-01-20 14:52:15,708 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:52:15,709 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:15,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 42 [2021-01-20 14:52:15,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:15,709 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:52:15,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 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) [2021-01-20 14:52:15,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:52:15,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:52:15,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:52:15,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:52:15 BasicIcfg [2021-01-20 14:52:15,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:52:15,719 INFO L168 Benchmark]: Toolchain (without parser) took 4553.59 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 252.5 MB in the end (delta: 23.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:15,720 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:15,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 896.13 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 276.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:15,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.31 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:15,726 INFO L168 Benchmark]: Boogie Preprocessor took 28.22 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:15,732 INFO L168 Benchmark]: RCFGBuilder took 585.29 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 252.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:15,733 INFO L168 Benchmark]: TraceAbstraction took 2981.97 ms. Allocated memory is still 302.0 MB. Free memory was 251.2 MB in the beginning and 252.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 1.9 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:15,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 896.13 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 276.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.31 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.22 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 585.29 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 252.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2981.97 ms. Allocated memory is still 302.0 MB. Free memory was 251.2 MB in the beginning and 252.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 1.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 297 SDtfs, 381 SDslu, 926 SDs, 0 SdLazy, 92 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred 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, 0.9s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17567 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...