/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:51:23,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:51:23,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:51:23,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:51:23,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:51:23,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:51:23,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:51:23,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:51:23,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:51:23,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:51:23,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:51:23,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:51:23,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:51:23,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:51:23,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:51:23,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:51:23,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:51:23,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:51:23,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:51:23,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:51:23,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:51:23,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:51:23,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:51:23,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:51:23,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:51:23,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:51:23,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:51:23,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:51:23,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:51:23,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:51:23,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:51:23,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:51:23,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:51:23,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:51:23,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:51:23,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:51:23,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:51:23,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:51:23,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:51:23,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:51:23,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:51:23,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:51:23,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:51:23,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:51:23,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:51:23,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:51:23,191 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:51:23,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:51:23,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:51:23,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:51:23,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:51:23,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:51:23,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:51:23,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:51:23,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:51:23,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:51:23,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:51:23,194 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:51:23,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:51:23,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:51:23,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:51:23,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:51:23,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:51:23,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:51:23,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:51:23,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:51:23,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:51:23,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:51:23,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:51:23,197 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:51:23,198 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:51:23,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:51:23,198 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:51:23,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:51:23,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:51:23,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:51:23,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:51:23,570 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:51:23,571 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-10-16 13:51:23,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdf8d716e/5c9954115b6d402e993074ec342e4cbb/FLAG2a813fb5d [2020-10-16 13:51:24,187 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:51:24,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-10-16 13:51:24,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdf8d716e/5c9954115b6d402e993074ec342e4cbb/FLAG2a813fb5d [2020-10-16 13:51:24,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdf8d716e/5c9954115b6d402e993074ec342e4cbb [2020-10-16 13:51:24,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:51:24,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:51:24,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:51:24,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:51:24,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:51:24,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:51:24" (1/1) ... [2020-10-16 13:51:24,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f0a578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:24, skipping insertion in model container [2020-10-16 13:51:24,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:51:24" (1/1) ... [2020-10-16 13:51:24,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:51:24,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:51:25,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:51:25,087 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:51:25,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:51:25,282 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:51:25,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25 WrapperNode [2020-10-16 13:51:25,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:51:25,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:51:25,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:51:25,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:51:25,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:51:25,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:51:25,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:51:25,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:51:25,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (1/1) ... [2020-10-16 13:51:25,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:51:25,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:51:25,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:51:25,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:51:25,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (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 [2020-10-16 13:51:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:51:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:51:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:51:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:51:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:51:25,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:51:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:51:25,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:51:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:51:25,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:51:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:51:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:51:25,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:51:25,495 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:51:25,883 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:51:25,883 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:51:25,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:51:25 BoogieIcfgContainer [2020-10-16 13:51:25,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:51:25,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:51:25,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:51:25,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:51:25,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:51:24" (1/3) ... [2020-10-16 13:51:25,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201e9de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:51:25, skipping insertion in model container [2020-10-16 13:51:25,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:51:25" (2/3) ... [2020-10-16 13:51:25,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201e9de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:51:25, skipping insertion in model container [2020-10-16 13:51:25,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:51:25" (3/3) ... [2020-10-16 13:51:25,897 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2020-10-16 13:51:25,909 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:51:25,910 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:51:25,918 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:51:25,920 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:51:25,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,949 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,952 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,955 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,958 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,964 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,965 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,977 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,978 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,988 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,988 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:51:25,996 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:51:26,007 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:51:26,025 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:51:26,025 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:51:26,025 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:51:26,025 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:51:26,026 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:51:26,026 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:51:26,026 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:51:26,026 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:51:26,038 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:51:26,039 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:51:26,041 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:51:26,043 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 13:51:26,087 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 13:51:26,088 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:51:26,093 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:51:26,096 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:51:27,207 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 13:51:27,295 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-16 13:51:27,296 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 13:51:27,313 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 13:51:27,344 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 13:51:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 13:51:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:51:27,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:51:27,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:51:27,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:51:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:51:27,363 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-16 13:51:27,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:51:27,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518674266] [2020-10-16 13:51:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:51:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:51:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:51:27,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518674266] [2020-10-16 13:51:27,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:51:27,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:51:27,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1940758304] [2020-10-16 13:51:27,585 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:51:27,589 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:51:27,607 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:51:27,608 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:51:27,611 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:51:27,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:51:27,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:51:27,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:51:27,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:51:27,630 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 13:51:27,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:51:27,654 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 13:51:27,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:51:27,656 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 13:51:27,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:51:27,673 INFO L225 Difference]: With dead ends: 362 [2020-10-16 13:51:27,673 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 13:51:27,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:51:27,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 13:51:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 13:51:27,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 13:51:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 13:51:27,755 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 13:51:27,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:51:27,756 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 13:51:27,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:51:27,757 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 13:51:27,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:51:27,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:51:27,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:51:27,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:51:27,759 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:51:27,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:51:27,760 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-16 13:51:27,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:51:27,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196783794] [2020-10-16 13:51:27,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:51:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:51:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:51:27,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196783794] [2020-10-16 13:51:27,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:51:27,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:51:27,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [882903932] [2020-10-16 13:51:27,897 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:51:27,898 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:51:27,900 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 13:51:27,900 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:51:27,900 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:51:27,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:51:27,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:51:27,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:51:27,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:51:27,903 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-16 13:51:27,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:51:27,942 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-16 13:51:27,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:51:27,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:51:27,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:51:27,946 INFO L225 Difference]: With dead ends: 330 [2020-10-16 13:51:27,946 INFO L226 Difference]: Without dead ends: 266 [2020-10-16 13:51:27,947 INFO L677 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 [2020-10-16 13:51:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-16 13:51:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-16 13:51:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-16 13:51:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-16 13:51:27,972 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-16 13:51:27,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:51:27,972 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-16 13:51:27,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:51:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-16 13:51:27,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:51:27,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:51:27,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:51:27,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:51:27,975 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:51:27,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:51:27,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-10-16 13:51:27,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:51:27,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121527089] [2020-10-16 13:51:27,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:51:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:51:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:51:28,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121527089] [2020-10-16 13:51:28,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:51:28,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:51:28,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [227209823] [2020-10-16 13:51:28,047 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:51:28,048 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:51:28,050 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-10-16 13:51:28,050 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:51:28,059 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:51:28,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:51:28,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:51:28,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:51:28,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:51:28,060 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-10-16 13:51:28,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:51:28,085 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-16 13:51:28,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:51:28,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 13:51:28,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:51:28,088 INFO L225 Difference]: With dead ends: 290 [2020-10-16 13:51:28,089 INFO L226 Difference]: Without dead ends: 242 [2020-10-16 13:51:28,089 INFO L677 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 [2020-10-16 13:51:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-16 13:51:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-16 13:51:28,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-16 13:51:28,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-16 13:51:28,105 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-16 13:51:28,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:51:28,106 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-16 13:51:28,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:51:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-16 13:51:28,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:51:28,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:51:28,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:51:28,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:51:28,108 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:51:28,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:51:28,109 INFO L82 PathProgramCache]: Analyzing trace with hash -635370963, now seen corresponding path program 1 times [2020-10-16 13:51:28,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:51:28,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705586000] [2020-10-16 13:51:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:51:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:51:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:51:28,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705586000] [2020-10-16 13:51:28,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:51:28,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:51:28,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1460736134] [2020-10-16 13:51:28,194 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:51:28,195 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:51:28,197 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-10-16 13:51:28,197 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:51:28,245 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:51:28,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:51:28,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:51:28,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:51:28,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:51:28,247 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 5 states. [2020-10-16 13:51:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:51:28,297 INFO L93 Difference]: Finished difference Result 302 states and 803 transitions. [2020-10-16 13:51:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:51:28,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-16 13:51:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:51:28,299 INFO L225 Difference]: With dead ends: 302 [2020-10-16 13:51:28,300 INFO L226 Difference]: Without dead ends: 146 [2020-10-16 13:51:28,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:51:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-16 13:51:28,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-16 13:51:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 13:51:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-16 13:51:28,307 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 11 [2020-10-16 13:51:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:51:28,308 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-16 13:51:28,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:51:28,308 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-16 13:51:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:51:28,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:51:28,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:51:28,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:51:28,310 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:51:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:51:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-10-16 13:51:28,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:51:28,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256164679] [2020-10-16 13:51:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:51:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:51:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:51:28,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256164679] [2020-10-16 13:51:28,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:51:28,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:51:28,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1055484831] [2020-10-16 13:51:28,369 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:51:28,370 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:51:28,375 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-10-16 13:51:28,375 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:51:28,494 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:51:28,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:51:28,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:51:28,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:51:28,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:51:28,496 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-16 13:51:28,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:51:28,540 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-10-16 13:51:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:51:28,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 13:51:28,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:51:28,542 INFO L225 Difference]: With dead ends: 176 [2020-10-16 13:51:28,542 INFO L226 Difference]: Without dead ends: 98 [2020-10-16 13:51:28,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:51:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-16 13:51:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-16 13:51:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-16 13:51:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-10-16 13:51:28,547 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-10-16 13:51:28,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:51:28,548 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-10-16 13:51:28,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:51:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-10-16 13:51:28,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:51:28,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:51:28,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:51:28,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:51:28,550 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:51:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:51:28,550 INFO L82 PathProgramCache]: Analyzing trace with hash -647415272, now seen corresponding path program 1 times [2020-10-16 13:51:28,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:51:28,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001050085] [2020-10-16 13:51:28,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:51:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:51:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:51:28,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001050085] [2020-10-16 13:51:28,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:51:28,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:51:28,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [432764636] [2020-10-16 13:51:28,603 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:51:28,605 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:51:28,608 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-10-16 13:51:28,609 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:51:28,688 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:51:28,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:51:28,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:51:28,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:51:28,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:51:28,690 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-10-16 13:51:28,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:51:28,734 INFO L93 Difference]: Finished difference Result 86 states and 186 transitions. [2020-10-16 13:51:28,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:51:28,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 13:51:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:51:28,736 INFO L225 Difference]: With dead ends: 86 [2020-10-16 13:51:28,737 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:51:28,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:51:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:51:28,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:51:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:51:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:51:28,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-16 13:51:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:51:28,738 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:51:28,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:51:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:51:28,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:51:28,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:51:28,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:51:28 BasicIcfg [2020-10-16 13:51:28,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:51:28,747 INFO L168 Benchmark]: Toolchain (without parser) took 4262.36 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.6 MB in the beginning and 197.4 MB in the end (delta: -95.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:51:28,748 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:51:28,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.89 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 160.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:51:28,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.16 ms. Allocated memory is still 203.4 MB. Free memory was 160.9 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:51:28,757 INFO L168 Benchmark]: Boogie Preprocessor took 53.67 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:51:28,758 INFO L168 Benchmark]: RCFGBuilder took 461.40 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 135.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:51:28,759 INFO L168 Benchmark]: TraceAbstraction took 2856.59 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 134.4 MB in the beginning and 197.4 MB in the end (delta: -63.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:51:28,769 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.89 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 160.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.16 ms. Allocated memory is still 203.4 MB. Free memory was 160.9 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.67 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.40 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 135.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2856.59 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 134.4 MB in the beginning and 197.4 MB in the end (delta: -63.0 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 676 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 133 SDtfs, 127 SDslu, 169 SDs, 0 SdLazy, 40 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 2035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...