/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:38:23,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:38:23,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:38:23,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:38:23,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:38:23,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:38:23,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:38:23,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:38:23,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:38:23,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:38:23,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:38:23,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:38:23,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:38:23,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:38:23,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:38:23,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:38:23,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:38:23,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:38:23,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:38:23,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:38:23,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:38:23,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:38:23,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:38:23,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:38:23,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:38:23,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:38:23,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:38:23,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:38:23,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:38:23,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:38:23,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:38:23,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:38:23,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:38:23,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:38:23,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:38:23,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:38:23,871 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 14:38:23,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:38:23,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:38:23,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:38:23,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:38:23,919 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:38:23,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:38:23,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:38:23,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:38:23,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:38:23,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:38:23,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:38:23,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:38:23,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:38:23,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:38:23,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:38:23,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:38:23,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:38:23,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:38:23,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:38:23,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:38:23,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:38:23,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:38:23,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:38:23,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:38:23,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:38:23,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:38:23,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:38:23,926 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:38:23,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:38:23,927 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:38:23,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:38:24,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:38:24,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:38:24,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:38:24,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:38:24,365 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:38:24,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-01-20 14:38:24,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5ca8344/ab94f845e11e4f01a969388df00879a5/FLAG99024bece [2021-01-20 14:38:25,245 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:38:25,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-01-20 14:38:25,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5ca8344/ab94f845e11e4f01a969388df00879a5/FLAG99024bece [2021-01-20 14:38:25,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5ca8344/ab94f845e11e4f01a969388df00879a5 [2021-01-20 14:38:25,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:38:25,556 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:38:25,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:38:25,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:38:25,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:38:25,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:38:25" (1/1) ... [2021-01-20 14:38:25,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d06e450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:25, skipping insertion in model container [2021-01-20 14:38:25,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:38:25" (1/1) ... [2021-01-20 14:38:25,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:38:25,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:38:26,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:38:26,061 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:38:26,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:38:26,224 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:38:26,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26 WrapperNode [2021-01-20 14:38:26,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:38:26,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:38:26,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:38:26,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:38:26,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:38:26,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:38:26,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:38:26,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:38:26,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... [2021-01-20 14:38:26,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:38:26,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:38:26,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:38:26,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:38:26,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:38:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:38:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:38:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:38:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:38:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:38:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:38:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:38:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:38:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:38:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:38:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:38:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:38:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:38:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:38:26,422 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 14:38:26,809 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:38:26,809 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:38:26,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:38:26 BoogieIcfgContainer [2021-01-20 14:38:26,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:38:26,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:38:26,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:38:26,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:38:26,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:38:25" (1/3) ... [2021-01-20 14:38:26,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b36ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:38:26, skipping insertion in model container [2021-01-20 14:38:26,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:38:26" (2/3) ... [2021-01-20 14:38:26,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b36ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:38:26, skipping insertion in model container [2021-01-20 14:38:26,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:38:26" (3/3) ... [2021-01-20 14:38:26,821 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2021-01-20 14:38:26,838 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:38:26,838 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:38:26,842 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:38:26,843 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:38:26,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,878 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,879 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,879 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,879 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,885 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,885 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,885 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,899 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,903 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:38:26,911 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:38:26,926 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:38:26,973 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:38:26,973 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:38:26,974 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:38:26,974 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:38:26,974 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:38:26,974 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:38:26,975 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:38:26,975 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:38:26,999 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 14:38:28,148 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:38:28,244 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:38:28,245 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 14:38:28,246 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:38:28,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:38:28,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2021-01-20 14:38:28,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:38:28,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531411926] [2021-01-20 14:38:28,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:38:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:38:28,832 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 14:38:28,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531411926] [2021-01-20 14:38:28,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:38:28,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:38:28,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642297545] [2021-01-20 14:38:28,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:38:28,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:38:28,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:38:28,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:38:28,876 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:38:29,535 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2021-01-20 14:38:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:38:29,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-20 14:38:29,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:38:29,645 INFO L225 Difference]: With dead ends: 12200 [2021-01-20 14:38:29,646 INFO L226 Difference]: Without dead ends: 4605 [2021-01-20 14:38:29,648 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 14:38:29,649 INFO L78 Accepts]: Start accepts. Automaton has 4605 states. Word has length 42 [2021-01-20 14:38:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:38:29,651 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states. [2021-01-20 14:38:29,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states. [2021-01-20 14:38:29,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:38:29,669 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:38:29,669 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:38:29,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:38:29,670 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:38:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:38:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2021-01-20 14:38:29,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:38:29,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596588700] [2021-01-20 14:38:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:38:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:38:29,879 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 14:38:29,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596588700] [2021-01-20 14:38:29,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:38:29,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:38:29,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870366774] [2021-01-20 14:38:29,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:38:29,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:38:29,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:38:29,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:38:29,884 INFO L87 Difference]: Start difference. First operand 4605 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:30,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:38:30,183 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2021-01-20 14:38:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:38:30,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-01-20 14:38:30,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:38:30,211 INFO L225 Difference]: With dead ends: 5725 [2021-01-20 14:38:30,211 INFO L226 Difference]: Without dead ends: 3030 [2021-01-20 14:38:30,212 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 14:38:30,212 INFO L78 Accepts]: Start accepts. Automaton has 3030 states. Word has length 44 [2021-01-20 14:38:30,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:38:30,213 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states. [2021-01-20 14:38:30,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states. [2021-01-20 14:38:30,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:38:30,223 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:38:30,223 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:38:30,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:38:30,224 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:38:30,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:38:30,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2021-01-20 14:38:30,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:38:30,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818322278] [2021-01-20 14:38:30,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:38:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:38:30,397 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 14:38:30,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818322278] [2021-01-20 14:38:30,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:38:30,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:38:30,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395422662] [2021-01-20 14:38:30,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:38:30,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:38:30,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:38:30,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:38:30,407 INFO L87 Difference]: Start difference. First operand 3030 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:30,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:38:30,658 INFO L93 Difference]: Finished difference Result 3366 states and 10910 transitions. [2021-01-20 14:38:30,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:38:30,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 14:38:30,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:38:30,685 INFO L225 Difference]: With dead ends: 3366 [2021-01-20 14:38:30,685 INFO L226 Difference]: Without dead ends: 2806 [2021-01-20 14:38:30,687 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 14:38:30,687 INFO L78 Accepts]: Start accepts. Automaton has 2806 states. Word has length 47 [2021-01-20 14:38:30,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:38:30,689 INFO L481 AbstractCegarLoop]: Abstraction has 2806 states. [2021-01-20 14:38:30,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states. [2021-01-20 14:38:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:38:30,698 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:38:30,698 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 14:38:30,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:38:30,699 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:38:30,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:38:30,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2021-01-20 14:38:30,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:38:30,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008487604] [2021-01-20 14:38:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:38:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:38:30,915 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 14:38:30,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008487604] [2021-01-20 14:38:30,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:38:30,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:38:30,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894781610] [2021-01-20 14:38:30,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:38:30,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:38:30,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:38:30,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:38:30,919 INFO L87 Difference]: Start difference. First operand 2806 states. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:38:31,124 INFO L93 Difference]: Finished difference Result 3790 states and 12172 transitions. [2021-01-20 14:38:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:38:31,125 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 14:38:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:38:31,140 INFO L225 Difference]: With dead ends: 3790 [2021-01-20 14:38:31,141 INFO L226 Difference]: Without dead ends: 1732 [2021-01-20 14:38:31,141 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 14:38:31,141 INFO L78 Accepts]: Start accepts. Automaton has 1732 states. Word has length 48 [2021-01-20 14:38:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:38:31,142 INFO L481 AbstractCegarLoop]: Abstraction has 1732 states. [2021-01-20 14:38:31,142 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 14:38:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states. [2021-01-20 14:38:31,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:38:31,148 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:38:31,149 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 14:38:31,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:38:31,149 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:38:31,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:38:31,150 INFO L82 PathProgramCache]: Analyzing trace with hash 710827437, now seen corresponding path program 1 times [2021-01-20 14:38:31,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:38:31,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214175214] [2021-01-20 14:38:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:38:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:38:31,272 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 14:38:31,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214175214] [2021-01-20 14:38:31,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:38:31,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:38:31,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172692164] [2021-01-20 14:38:31,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:38:31,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:38:31,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:38:31,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:38:31,275 INFO L87 Difference]: Start difference. First operand 1732 states. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:38:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:38:31,429 INFO L93 Difference]: Finished difference Result 1476 states and 4538 transitions. [2021-01-20 14:38:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:38:31,430 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 14:38:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:38:31,430 INFO L225 Difference]: With dead ends: 1476 [2021-01-20 14:38:31,430 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:38:31,431 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:38:31,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 51 [2021-01-20 14:38:31,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:38:31,431 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:38:31,432 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 14:38:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:38:31,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:38:31,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:38:31,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:38:31 BasicIcfg [2021-01-20 14:38:31,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:38:31,441 INFO L168 Benchmark]: Toolchain (without parser) took 5883.70 ms. Allocated memory was 302.0 MB in the beginning and 706.7 MB in the end (delta: 404.8 MB). Free memory was 275.7 MB in the beginning and 609.7 MB in the end (delta: -334.0 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:38:31,441 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:38:31,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.12 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 275.8 MB in the end (delta: -376.1 kB). Peak memory consumption was 31.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:38:31,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.06 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 273.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:38:31,444 INFO L168 Benchmark]: Boogie Preprocessor took 30.02 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 272.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:38:31,445 INFO L168 Benchmark]: RCFGBuilder took 488.33 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 249.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:38:31,446 INFO L168 Benchmark]: TraceAbstraction took 4624.90 ms. Allocated memory was 302.0 MB in the beginning and 706.7 MB in the end (delta: 404.8 MB). Free memory was 249.6 MB in the beginning and 609.7 MB in the end (delta: -360.1 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.0 GB. [2021-01-20 14:38:31,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 664.12 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 275.8 MB in the end (delta: -376.1 kB). Peak memory consumption was 31.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 65.06 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 273.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.02 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 272.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 488.33 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 249.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4624.90 ms. Allocated memory was 302.0 MB in the beginning and 706.7 MB in the end (delta: 404.8 MB). Free memory was 249.6 MB in the beginning and 609.7 MB in the end (delta: -360.1 MB). Peak memory consumption was 44.6 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 500 SDtfs, 655 SDslu, 1603 SDs, 0 SdLazy, 156 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 27837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...