/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:15:58,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:15:58,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:15:58,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 00:15:58,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 00:15:58,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 00:15:58,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 00:15:58,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 00:15:58,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 00:15:58,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 00:15:58,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 00:15:58,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 00:15:58,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:15:58,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:15:58,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:15:58,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:15:58,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:15:58,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:15:58,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:15:58,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:15:58,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:15:58,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:15:58,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:15:58,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:15:58,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 00:15:58,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 00:15:58,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 00:15:58,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 00:15:58,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 00:15:58,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 00:15:58,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 00:15:58,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 00:15:58,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 00:15:58,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 00:15:58,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 00:15:58,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 00:15:58,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 00:15:58,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 00:15:58,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:15:58,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:15:58,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:15:58,937 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-Delay.epf [2021-07-14 00:15:58,963 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:15:58,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:15:58,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:15:58,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:15:58,966 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:15:58,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:15:58,966 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:15:58,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:15:58,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:15:58,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:15:58,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:15:58,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:15:58,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:15:58,968 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:15:58,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:15:58,968 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:15:58,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:15:58,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:15:58,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:15:58,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:15:58,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:15:58,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:15:58,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:15:58,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:15:58,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:15:58,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:15:58,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:15:58,989 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:15:58,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:15:58,990 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:15:58,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:15:59,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:15:59,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:15:59,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:15:59,295 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:15:59,296 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:15:59,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-07-14 00:15:59,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e270001/d6640d5811c243489b8132573f2476ea/FLAG95bb8bb1a [2021-07-14 00:15:59,811 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:15:59,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-07-14 00:15:59,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e270001/d6640d5811c243489b8132573f2476ea/FLAG95bb8bb1a [2021-07-14 00:15:59,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e270001/d6640d5811c243489b8132573f2476ea [2021-07-14 00:15:59,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:15:59,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:15:59,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:15:59,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:15:59,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:15:59,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:15:59" (1/1) ... [2021-07-14 00:15:59,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a369424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:59, skipping insertion in model container [2021-07-14 00:15:59,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:15:59" (1/1) ... [2021-07-14 00:15:59,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:15:59,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:16:00,032 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i[950,963] [2021-07-14 00:16:00,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:16:00,154 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:16:00,163 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i[950,963] [2021-07-14 00:16:00,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:16:00,212 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:16:00,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00 WrapperNode [2021-07-14 00:16:00,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:16:00,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:16:00,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:16:00,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:16:00,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:16:00,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:16:00,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:16:00,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:16:00,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (1/1) ... [2021-07-14 00:16:00,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:16:00,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:16:00,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:16:00,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:16:00,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (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 [2021-07-14 00:16:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:16:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:16:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:16:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:16:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:16:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:16:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:16:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:16:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:16:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:16:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:16:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:16:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:16:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:16:00,336 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:16:00,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:16:00,722 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:16:00,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:16:00 BoogieIcfgContainer [2021-07-14 00:16:00,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:16:00,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:16:00,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:16:00,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:16:00,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:15:59" (1/3) ... [2021-07-14 00:16:00,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b5279c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:16:00, skipping insertion in model container [2021-07-14 00:16:00,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:00" (2/3) ... [2021-07-14 00:16:00,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b5279c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:16:00, skipping insertion in model container [2021-07-14 00:16:00,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:16:00" (3/3) ... [2021-07-14 00:16:00,728 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2021-07-14 00:16:00,732 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:16:00,732 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:16:00,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:16:00,749 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:16:00,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,783 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,783 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,783 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,783 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,786 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,786 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,787 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,787 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:00,811 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:16:00,842 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-14 00:16:00,870 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:16:00,870 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:16:00,870 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:16:00,870 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:16:00,870 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:16:00,870 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:16:00,870 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:16:00,870 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:16:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 4768 states have (on average 2.059773489932886) internal successors, (9821), 5558 states have internal predecessors, (9821), 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) [2021-07-14 00:16:01,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-14 00:16:01,419 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:01,419 INFO L508 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] [2021-07-14 00:16:01,420 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:01,424 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-07-14 00:16:01,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:01,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982648804] [2021-07-14 00:16:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:01,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:01,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:01,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:01,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:01,737 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:01,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:01,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:01,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:01,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:01,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:01,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:01,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:01,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:01,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982648804] [2021-07-14 00:16:01,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982648804] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:01,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:01,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:16:01,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794666677] [2021-07-14 00:16:01,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:16:01,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:01,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:16:01,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:16:01,825 INFO L87 Difference]: Start difference. First operand has 5559 states, 4768 states have (on average 2.059773489932886) internal successors, (9821), 5558 states have internal predecessors, (9821), 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 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-07-14 00:16:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:02,057 INFO L93 Difference]: Finished difference Result 6343 states and 11435 transitions. [2021-07-14 00:16:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:16:02,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-07-14 00:16:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:02,099 INFO L225 Difference]: With dead ends: 6343 [2021-07-14 00:16:02,099 INFO L226 Difference]: Without dead ends: 2488 [2021-07-14 00:16:02,100 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 143.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:16:02,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2021-07-14 00:16:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2021-07-14 00:16:02,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2439 states have (on average 2.3079130791307914) internal successors, (5629), 2487 states have internal predecessors, (5629), 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) [2021-07-14 00:16:02,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 5629 transitions. [2021-07-14 00:16:02,305 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 5629 transitions. Word has length 49 [2021-07-14 00:16:02,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:02,306 INFO L482 AbstractCegarLoop]: Abstraction has 2488 states and 5629 transitions. [2021-07-14 00:16:02,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-07-14 00:16:02,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 5629 transitions. [2021-07-14 00:16:02,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-14 00:16:02,329 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:02,329 INFO L508 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] [2021-07-14 00:16:02,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:16:02,330 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:02,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:02,333 INFO L82 PathProgramCache]: Analyzing trace with hash 2100772178, now seen corresponding path program 1 times [2021-07-14 00:16:02,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:02,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861106185] [2021-07-14 00:16:02,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:02,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:02,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:02,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:02,417 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:02,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:02,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:02,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:02,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:02,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:02,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861106185] [2021-07-14 00:16:02,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861106185] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:02,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:02,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:02,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923601208] [2021-07-14 00:16:02,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:02,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:02,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:02,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:02,455 INFO L87 Difference]: Start difference. First operand 2488 states and 5629 transitions. 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) [2021-07-14 00:16:02,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:02,612 INFO L93 Difference]: Finished difference Result 3160 states and 7403 transitions. [2021-07-14 00:16:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:16:02,613 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 [2021-07-14 00:16:02,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:02,620 INFO L225 Difference]: With dead ends: 3160 [2021-07-14 00:16:02,620 INFO L226 Difference]: Without dead ends: 1564 [2021-07-14 00:16:02,621 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 118.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-14 00:16:02,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2021-07-14 00:16:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1564. [2021-07-14 00:16:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1536 states have (on average 2.3229166666666665) internal successors, (3568), 1563 states have internal predecessors, (3568), 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) [2021-07-14 00:16:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 3568 transitions. [2021-07-14 00:16:02,649 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 3568 transitions. Word has length 51 [2021-07-14 00:16:02,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:02,649 INFO L482 AbstractCegarLoop]: Abstraction has 1564 states and 3568 transitions. [2021-07-14 00:16:02,649 INFO L483 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) [2021-07-14 00:16:02,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 3568 transitions. [2021-07-14 00:16:02,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-14 00:16:02,653 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:02,653 INFO L508 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, 1, 1, 1] [2021-07-14 00:16:02,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:16:02,653 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:02,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1715889907, now seen corresponding path program 1 times [2021-07-14 00:16:02,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:02,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101867428] [2021-07-14 00:16:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:02,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:02,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:02,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:02,737 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:02,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:02,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:02,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:02,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:02,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:02,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:02,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101867428] [2021-07-14 00:16:02,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101867428] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:02,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:02,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:02,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895408458] [2021-07-14 00:16:02,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:02,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:02,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:02,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:02,790 INFO L87 Difference]: Start difference. First operand 1564 states and 3568 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-07-14 00:16:02,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:02,921 INFO L93 Difference]: Finished difference Result 2164 states and 5000 transitions. [2021-07-14 00:16:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:16:02,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-07-14 00:16:02,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:02,925 INFO L225 Difference]: With dead ends: 2164 [2021-07-14 00:16:02,926 INFO L226 Difference]: Without dead ends: 928 [2021-07-14 00:16:02,926 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-14 00:16:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2021-07-14 00:16:02,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2021-07-14 00:16:02,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 912 states have (on average 2.3530701754385963) internal successors, (2146), 927 states have internal predecessors, (2146), 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) [2021-07-14 00:16:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 2146 transitions. [2021-07-14 00:16:02,942 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 2146 transitions. Word has length 54 [2021-07-14 00:16:02,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:02,943 INFO L482 AbstractCegarLoop]: Abstraction has 928 states and 2146 transitions. [2021-07-14 00:16:02,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-07-14 00:16:02,944 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 2146 transitions. [2021-07-14 00:16:02,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-14 00:16:02,945 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:02,945 INFO L508 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, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:02,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:16:02,945 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:02,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:02,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1319826248, now seen corresponding path program 1 times [2021-07-14 00:16:02,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:02,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066012654] [2021-07-14 00:16:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:03,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:03,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:03,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:03,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:03,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:03,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:03,035 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:03,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:03,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:03,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:03,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:03,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:03,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:03,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:03,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:03,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:03,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066012654] [2021-07-14 00:16:03,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066012654] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:03,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:03,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:03,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454887877] [2021-07-14 00:16:03,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:03,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:03,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:03,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:03,070 INFO L87 Difference]: Start difference. First operand 928 states and 2146 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-07-14 00:16:03,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:03,129 INFO L93 Difference]: Finished difference Result 800 states and 1810 transitions. [2021-07-14 00:16:03,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:16:03,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-07-14 00:16:03,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:03,130 INFO L225 Difference]: With dead ends: 800 [2021-07-14 00:16:03,130 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:16:03,130 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 66.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:16:03,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:16:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:16:03,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-07-14 00:16:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:16:03,131 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-07-14 00:16:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:03,131 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:16:03,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-07-14 00:16:03,131 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:16:03,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:16:03,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:16:03,133 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:16:03,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:16:03 BasicIcfg [2021-07-14 00:16:03,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:16:03,135 INFO L168 Benchmark]: Toolchain (without parser) took 3288.19 ms. Allocated memory was 188.7 MB in the beginning and 248.5 MB in the end (delta: 59.8 MB). Free memory was 151.6 MB in the beginning and 149.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 63.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:03,135 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 188.7 MB. Free memory was 169.9 MB in the beginning and 169.8 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:16:03,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.70 ms. Allocated memory is still 188.7 MB. Free memory was 151.3 MB in the beginning and 161.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:03,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.43 ms. Allocated memory is still 188.7 MB. Free memory was 161.7 MB in the beginning and 160.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:03,137 INFO L168 Benchmark]: Boogie Preprocessor took 17.87 ms. Allocated memory is still 188.7 MB. Free memory was 160.0 MB in the beginning and 158.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:03,138 INFO L168 Benchmark]: RCFGBuilder took 458.86 ms. Allocated memory is still 188.7 MB. Free memory was 158.6 MB in the beginning and 134.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:03,139 INFO L168 Benchmark]: TraceAbstraction took 2409.50 ms. Allocated memory was 188.7 MB in the beginning and 248.5 MB in the end (delta: 59.8 MB). Free memory was 134.5 MB in the beginning and 149.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 45.8 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:03,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 188.7 MB. Free memory was 169.9 MB in the beginning and 169.8 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 365.70 ms. Allocated memory is still 188.7 MB. Free memory was 151.3 MB in the beginning and 161.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.43 ms. Allocated memory is still 188.7 MB. Free memory was 161.7 MB in the beginning and 160.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.87 ms. Allocated memory is still 188.7 MB. Free memory was 160.0 MB in the beginning and 158.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 458.86 ms. Allocated memory is still 188.7 MB. Free memory was 158.6 MB in the beginning and 134.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2409.50 ms. Allocated memory was 188.7 MB in the beginning and 248.5 MB in the end (delta: 59.8 MB). Free memory was 134.5 MB in the beginning and 149.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 45.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18605, positive: 17826, positive conditional: 17826, positive unconditional: 0, negative: 779, negative conditional: 779, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18524, positive: 17826, positive conditional: 0, positive unconditional: 17826, negative: 698, negative conditional: 0, negative unconditional: 698, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 646, positive: 627, positive conditional: 0, positive unconditional: 627, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 646, positive: 624, positive conditional: 0, positive unconditional: 624, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18524, positive: 17199, positive conditional: 0, positive unconditional: 17199, negative: 679, negative conditional: 0, negative unconditional: 679, unknown: 646, unknown conditional: 0, unknown unconditional: 646] , Statistics on independence cache: Total cache size (in pairs): 646, Positive cache size: 627, Positive conditional cache size: 0, Positive unconditional cache size: 627, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Independence queries for same thread: 81 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2263.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 43.1ms, AutomataDifference: 660.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 513.7ms, PartialOrderReductionTime: 487.6ms, HoareTripleCheckerStatistics: 390 SDtfs, 479 SDslu, 1195 SDs, 0 SdLazy, 116 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 467.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 238.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.0ms SsaConstructionTime, 124.5ms SatisfiabilityAnalysisTime, 520.0ms InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 607 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...