/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 23:32:36,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 23:32:36,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 23:32:36,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 23:32:36,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 23:32:37,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 23:32:37,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 23:32:37,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 23:32:37,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 23:32:37,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 23:32:37,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 23:32:37,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 23:32:37,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 23:32:37,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 23:32:37,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 23:32:37,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 23:32:37,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 23:32:37,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 23:32:37,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 23:32:37,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 23:32:37,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 23:32:37,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 23:32:37,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 23:32:37,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 23:32:37,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-14 23:32:37,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-14 23:32:37,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-14 23:32:37,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-14 23:32:37,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-14 23:32:37,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-14 23:32:37,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 23:32:37,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 23:32:37,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 23:32:37,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 23:32:37,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 23:32:37,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 23:32:37,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 23:32:37,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 23:32:37,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 23:32:37,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 23:32:37,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 23:32:37,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 23:32:37,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 23:32:37,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 23:32:37,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 23:32:37,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 23:32:37,073 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 23:32:37,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 23:32:37,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 23:32:37,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 23:32:37,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 23:32:37,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 23:32:37,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 23:32:37,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 23:32:37,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 23:32:37,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 23:32:37,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 23:32:37,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 23:32:37,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 23:32:37,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 23:32:37,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 23:32:37,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 23:32:37,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 23:32:37,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 23:32:37,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 23:32:37,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 23:32:37,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 23:32:37,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 23:32:37,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 23:32:37,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 23:32:37,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 23:32:37,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 23:32:37,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 23:32:37,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 23:32:37,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 23:32:37,530 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 23:32:37,531 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 23:32:37,532 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-14 23:32:37,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/845e439c3/9674ed34d3c74e53b1fe6347742f319d/FLAG14a0ed0c7 [2020-09-14 23:32:38,278 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 23:32:38,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-14 23:32:38,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/845e439c3/9674ed34d3c74e53b1fe6347742f319d/FLAG14a0ed0c7 [2020-09-14 23:32:38,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/845e439c3/9674ed34d3c74e53b1fe6347742f319d [2020-09-14 23:32:38,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 23:32:38,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 23:32:38,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 23:32:38,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 23:32:38,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 23:32:38,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:32:38" (1/1) ... [2020-09-14 23:32:38,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14df979a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:38, skipping insertion in model container [2020-09-14 23:32:38,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:32:38" (1/1) ... [2020-09-14 23:32:38,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 23:32:38,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 23:32:39,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:32:39,202 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 23:32:39,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:32:39,350 INFO L208 MainTranslator]: Completed translation [2020-09-14 23:32:39,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39 WrapperNode [2020-09-14 23:32:39,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 23:32:39,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 23:32:39,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 23:32:39,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 23:32:39,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 23:32:39,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 23:32:39,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 23:32:39,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 23:32:39,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... [2020-09-14 23:32:39,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 23:32:39,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 23:32:39,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 23:32:39,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 23:32:39,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-14 23:32:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 23:32:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-14 23:32:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 23:32:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 23:32:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-14 23:32:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-14 23:32:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-14 23:32:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-14 23:32:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-14 23:32:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-14 23:32:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-14 23:32:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 23:32:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 23:32:39,533 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 23:32:39,937 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 23:32:39,938 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-14 23:32:39,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:32:39 BoogieIcfgContainer [2020-09-14 23:32:39,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 23:32:39,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 23:32:39,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 23:32:39,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 23:32:39,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 11:32:38" (1/3) ... [2020-09-14 23:32:39,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211ca048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:32:39, skipping insertion in model container [2020-09-14 23:32:39,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:32:39" (2/3) ... [2020-09-14 23:32:39,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211ca048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:32:39, skipping insertion in model container [2020-09-14 23:32:39,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:32:39" (3/3) ... [2020-09-14 23:32:39,954 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-09-14 23:32:39,966 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 23:32:39,967 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 23:32:39,977 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-14 23:32:39,978 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 23:32:40,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,020 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,020 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,020 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,021 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,031 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,037 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:32:40,063 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-14 23:32:40,087 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 23:32:40,088 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 23:32:40,088 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 23:32:40,088 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 23:32:40,088 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 23:32:40,089 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 23:32:40,089 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 23:32:40,089 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 23:32:40,109 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-14 23:32:40,112 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-14 23:32:40,164 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-14 23:32:40,165 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:32:40,171 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-14 23:32:40,174 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-14 23:32:40,196 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-14 23:32:40,197 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:32:40,197 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-14 23:32:40,200 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-14 23:32:40,201 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 23:32:41,868 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2133 [2020-09-14 23:32:41,869 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-14 23:32:41,873 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-14 23:32:41,897 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-14 23:32:41,900 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-14 23:32:41,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-14 23:32:41,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:32:41,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:32:41,912 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:32:41,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:32:41,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-09-14 23:32:41,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:32:41,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760931507] [2020-09-14 23:32:41,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:32:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:32:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:32:42,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760931507] [2020-09-14 23:32:42,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:32:42,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-14 23:32:42,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733283464] [2020-09-14 23:32:42,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 23:32:42,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:32:42,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 23:32:42,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 23:32:42,236 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-14 23:32:42,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:32:42,288 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-09-14 23:32:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 23:32:42,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-14 23:32:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:32:42,309 INFO L225 Difference]: With dead ends: 214 [2020-09-14 23:32:42,309 INFO L226 Difference]: Without dead ends: 166 [2020-09-14 23:32:42,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 23:32:42,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-14 23:32:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-09-14 23:32:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-14 23:32:42,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-09-14 23:32:42,384 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-09-14 23:32:42,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:32:42,386 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-09-14 23:32:42,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 23:32:42,386 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-09-14 23:32:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-14 23:32:42,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:32:42,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:32:42,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 23:32:42,388 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:32:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:32:42,389 INFO L82 PathProgramCache]: Analyzing trace with hash 658710541, now seen corresponding path program 1 times [2020-09-14 23:32:42,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:32:42,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839389227] [2020-09-14 23:32:42,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:32:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:32:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:32:42,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839389227] [2020-09-14 23:32:42,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:32:42,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:32:42,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884781929] [2020-09-14 23:32:42,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:32:42,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:32:42,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:32:42,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:32:42,482 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-09-14 23:32:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:32:42,525 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-09-14 23:32:42,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 23:32:42,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-14 23:32:42,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:32:42,528 INFO L225 Difference]: With dead ends: 220 [2020-09-14 23:32:42,528 INFO L226 Difference]: Without dead ends: 148 [2020-09-14 23:32:42,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:32:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-14 23:32:42,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-14 23:32:42,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-14 23:32:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-09-14 23:32:42,548 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 9 [2020-09-14 23:32:42,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:32:42,549 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-09-14 23:32:42,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:32:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-09-14 23:32:42,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-14 23:32:42,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:32:42,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:32:42,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 23:32:42,551 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:32:42,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:32:42,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 1 times [2020-09-14 23:32:42,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:32:42,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821629693] [2020-09-14 23:32:42,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:32:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:32:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:32:42,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821629693] [2020-09-14 23:32:42,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:32:42,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:32:42,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738170668] [2020-09-14 23:32:42,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:32:42,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:32:42,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:32:42,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:32:42,709 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 4 states. [2020-09-14 23:32:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:32:42,769 INFO L93 Difference]: Finished difference Result 168 states and 391 transitions. [2020-09-14 23:32:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:32:42,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-14 23:32:42,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:32:42,776 INFO L225 Difference]: With dead ends: 168 [2020-09-14 23:32:42,776 INFO L226 Difference]: Without dead ends: 126 [2020-09-14 23:32:42,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:32:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-14 23:32:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-09-14 23:32:42,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-14 23:32:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 291 transitions. [2020-09-14 23:32:42,796 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 291 transitions. Word has length 10 [2020-09-14 23:32:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:32:42,796 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 291 transitions. [2020-09-14 23:32:42,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:32:42,797 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-09-14 23:32:42,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-14 23:32:42,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:32:42,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:32:42,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 23:32:42,798 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:32:42,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:32:42,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1670186442, now seen corresponding path program 1 times [2020-09-14 23:32:42,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:32:42,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628949733] [2020-09-14 23:32:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:32:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:32:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:32:42,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628949733] [2020-09-14 23:32:42,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:32:42,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:32:42,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404698389] [2020-09-14 23:32:42,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:32:42,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:32:42,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:32:42,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:32:42,877 INFO L87 Difference]: Start difference. First operand 126 states and 291 transitions. Second operand 5 states. [2020-09-14 23:32:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:32:42,927 INFO L93 Difference]: Finished difference Result 121 states and 257 transitions. [2020-09-14 23:32:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 23:32:42,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-14 23:32:42,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:32:42,929 INFO L225 Difference]: With dead ends: 121 [2020-09-14 23:32:42,929 INFO L226 Difference]: Without dead ends: 93 [2020-09-14 23:32:42,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 23:32:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-14 23:32:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-14 23:32:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-14 23:32:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-09-14 23:32:42,937 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 11 [2020-09-14 23:32:42,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:32:42,938 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-09-14 23:32:42,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:32:42,938 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-09-14 23:32:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-14 23:32:42,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:32:42,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:32:42,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 23:32:42,940 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:32:42,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:32:42,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-09-14 23:32:42,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:32:42,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410414352] [2020-09-14 23:32:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:32:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:32:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:32:43,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410414352] [2020-09-14 23:32:43,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:32:43,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:32:43,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378955623] [2020-09-14 23:32:43,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-14 23:32:43,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:32:43,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-14 23:32:43,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 23:32:43,041 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 6 states. [2020-09-14 23:32:43,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:32:43,120 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-09-14 23:32:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-14 23:32:43,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-09-14 23:32:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:32:43,121 INFO L225 Difference]: With dead ends: 87 [2020-09-14 23:32:43,121 INFO L226 Difference]: Without dead ends: 78 [2020-09-14 23:32:43,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:32:43,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-14 23:32:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-14 23:32:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-14 23:32:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-09-14 23:32:43,127 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-09-14 23:32:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:32:43,127 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-09-14 23:32:43,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-14 23:32:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-09-14 23:32:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-14 23:32:43,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:32:43,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:32:43,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 23:32:43,129 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:32:43,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:32:43,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-09-14 23:32:43,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:32:43,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814888536] [2020-09-14 23:32:43,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:32:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:32:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:32:43,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814888536] [2020-09-14 23:32:43,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:32:43,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:32:43,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320253892] [2020-09-14 23:32:43,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:32:43,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:32:43,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:32:43,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:32:43,192 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-09-14 23:32:43,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:32:43,214 INFO L93 Difference]: Finished difference Result 129 states and 249 transitions. [2020-09-14 23:32:43,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:32:43,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-14 23:32:43,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:32:43,215 INFO L225 Difference]: With dead ends: 129 [2020-09-14 23:32:43,216 INFO L226 Difference]: Without dead ends: 48 [2020-09-14 23:32:43,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:32:43,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-14 23:32:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-14 23:32:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-14 23:32:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-09-14 23:32:43,220 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-09-14 23:32:43,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:32:43,220 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-09-14 23:32:43,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:32:43,220 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-09-14 23:32:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-14 23:32:43,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:32:43,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:32:43,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 23:32:43,222 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:32:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:32:43,222 INFO L82 PathProgramCache]: Analyzing trace with hash -109612871, now seen corresponding path program 2 times [2020-09-14 23:32:43,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:32:43,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786070859] [2020-09-14 23:32:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:32:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:32:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:32:43,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786070859] [2020-09-14 23:32:43,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:32:43,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:32:43,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296565546] [2020-09-14 23:32:43,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:32:43,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:32:43,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:32:43,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:32:43,331 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-09-14 23:32:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:32:43,345 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-09-14 23:32:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 23:32:43,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-14 23:32:43,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:32:43,346 INFO L225 Difference]: With dead ends: 47 [2020-09-14 23:32:43,346 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 23:32:43,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:32:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 23:32:43,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 23:32:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 23:32:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 23:32:43,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-14 23:32:43,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:32:43,348 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 23:32:43,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:32:43,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 23:32:43,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 23:32:43,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 23:32:43,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 11:32:43 BasicIcfg [2020-09-14 23:32:43,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 23:32:43,357 INFO L168 Benchmark]: Toolchain (without parser) took 4857.30 ms. Allocated memory was 136.8 MB in the beginning and 254.3 MB in the end (delta: 117.4 MB). Free memory was 98.2 MB in the beginning and 215.3 MB in the end (delta: -117.1 MB). Peak memory consumption was 340.7 kB. Max. memory is 7.1 GB. [2020-09-14 23:32:43,358 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 136.8 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-14 23:32:43,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.70 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 97.6 MB in the beginning and 158.1 MB in the end (delta: -60.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-14 23:32:43,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.76 ms. Allocated memory is still 200.3 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-14 23:32:43,361 INFO L168 Benchmark]: Boogie Preprocessor took 30.53 ms. Allocated memory is still 200.3 MB. Free memory was 156.0 MB in the beginning and 154.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-09-14 23:32:43,362 INFO L168 Benchmark]: RCFGBuilder took 499.95 ms. Allocated memory is still 200.3 MB. Free memory was 154.5 MB in the beginning and 132.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-14 23:32:43,362 INFO L168 Benchmark]: TraceAbstraction took 3408.53 ms. Allocated memory was 200.3 MB in the beginning and 254.3 MB in the end (delta: 54.0 MB). Free memory was 132.0 MB in the beginning and 215.3 MB in the end (delta: -83.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-14 23:32:43,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 136.8 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 846.70 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 97.6 MB in the beginning and 158.1 MB in the end (delta: -60.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.76 ms. Allocated memory is still 200.3 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.53 ms. Allocated memory is still 200.3 MB. Free memory was 156.0 MB in the beginning and 154.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 499.95 ms. Allocated memory is still 200.3 MB. Free memory was 154.5 MB in the beginning and 132.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3408.53 ms. Allocated memory was 200.3 MB in the beginning and 254.3 MB in the end (delta: 54.0 MB). Free memory was 132.0 MB in the beginning and 215.3 MB in the end (delta: -83.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 608 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2133 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 131 SDtfs, 126 SDslu, 188 SDs, 0 SdLazy, 102 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2710 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...