/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:09:44,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:09:44,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:09:44,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:09:44,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:09:44,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:09:44,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:09:44,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:09:44,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:09:44,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:09:44,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:09:44,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:09:44,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:09:44,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:09:44,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:09:44,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:09:44,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:09:44,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:09:44,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:09:44,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:09:44,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:09:44,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:09:44,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:09:44,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:09:44,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:09:44,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:09:44,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:09:44,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:09:44,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:09:44,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:09:44,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:09:44,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:09:44,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:09:44,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:09:44,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:09:44,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:09:44,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:09:44,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:09:44,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:09:44,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:09:44,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:09:44,250 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.epf [2020-10-16 12:09:44,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:09:44,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:09:44,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:09:44,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:09:44,275 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:09:44,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:09:44,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:09:44,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:09:44,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:09:44,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:09:44,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:09:44,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:09:44,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:09:44,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:09:44,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:09:44,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:09:44,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:09:44,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:09:44,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:09:44,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:09:44,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:09:44,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:09:44,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:09:44,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:09:44,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:09:44,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:09:44,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:09:44,279 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:09:44,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:09:44,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:09:44,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:09:44,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:09:44,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:09:44,591 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:09:44,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2020-10-16 12:09:44,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70dddc7d9/b4f5e064be674f55a894dc521fbda04d/FLAGbc26a6501 [2020-10-16 12:09:45,263 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:09:45,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2020-10-16 12:09:45,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70dddc7d9/b4f5e064be674f55a894dc521fbda04d/FLAGbc26a6501 [2020-10-16 12:09:45,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70dddc7d9/b4f5e064be674f55a894dc521fbda04d [2020-10-16 12:09:45,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:09:45,533 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:09:45,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:09:45,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:09:45,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:09:45,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:09:45" (1/1) ... [2020-10-16 12:09:45,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aff18c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:45, skipping insertion in model container [2020-10-16 12:09:45,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:09:45" (1/1) ... [2020-10-16 12:09:45,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:09:45,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:09:46,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:09:46,080 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:09:46,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:09:46,211 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:09:46,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46 WrapperNode [2020-10-16 12:09:46,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:09:46,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:09:46,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:09:46,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:09:46,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:09:46,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:09:46,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:09:46,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:09:46,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (1/1) ... [2020-10-16 12:09:46,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:09:46,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:09:46,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:09:46,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:09:46,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (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 12:09:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:09:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:09:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:09:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:09:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:09:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:09:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:09:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:09:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:09:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:09:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:09:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:09:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:09:46,370 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 12:09:46,719 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:09:46,720 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:09:46,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:09:46 BoogieIcfgContainer [2020-10-16 12:09:46,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:09:46,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:09:46,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:09:46,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:09:46,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:09:45" (1/3) ... [2020-10-16 12:09:46,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509877c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:09:46, skipping insertion in model container [2020-10-16 12:09:46,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:46" (2/3) ... [2020-10-16 12:09:46,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509877c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:09:46, skipping insertion in model container [2020-10-16 12:09:46,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:09:46" (3/3) ... [2020-10-16 12:09:46,732 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2020-10-16 12:09:46,745 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:09:46,745 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:09:46,754 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:09:46,755 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:09:46,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,799 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,799 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,801 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,802 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,804 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,804 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,810 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,810 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,818 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,821 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,822 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:46,825 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:09:46,840 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:09:46,863 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:09:46,863 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:09:46,864 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:09:46,864 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:09:46,864 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:09:46,864 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:09:46,864 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:09:46,865 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:09:46,879 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:09:46,880 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 12:09:46,883 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 12:09:46,886 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 12:09:46,933 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 12:09:46,933 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:09:46,939 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 12:09:46,943 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-16 12:09:48,280 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-10-16 12:09:48,492 INFO L132 LiptonReduction]: Checked pairs total: 2102 [2020-10-16 12:09:48,492 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-16 12:09:48,503 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 12:09:48,529 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-16 12:09:48,532 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-16 12:09:48,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:09:48,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:48,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:48,541 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:48,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:48,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1153400973, now seen corresponding path program 1 times [2020-10-16 12:09:48,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:48,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212982939] [2020-10-16 12:09:48,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:48,770 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 12:09:48,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212982939] [2020-10-16 12:09:48,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:48,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:09:48,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352430178] [2020-10-16 12:09:48,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:09:48,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:48,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:09:48,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:09:48,801 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-16 12:09:48,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:48,851 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-16 12:09:48,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:09:48,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:09:48,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:48,870 INFO L225 Difference]: With dead ends: 214 [2020-10-16 12:09:48,871 INFO L226 Difference]: Without dead ends: 166 [2020-10-16 12:09:48,872 INFO L677 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 [2020-10-16 12:09:48,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-16 12:09:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-16 12:09:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-16 12:09:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-16 12:09:48,935 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-16 12:09:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:48,936 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-16 12:09:48,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:09:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-16 12:09:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:09:48,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:48,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:48,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:09:48,938 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:48,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:48,939 INFO L82 PathProgramCache]: Analyzing trace with hash 837018342, now seen corresponding path program 1 times [2020-10-16 12:09:48,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:48,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560747207] [2020-10-16 12:09:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:49,024 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 12:09:49,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560747207] [2020-10-16 12:09:49,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:49,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:09:49,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166708068] [2020-10-16 12:09:49,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:49,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:49,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:49,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:49,027 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-16 12:09:49,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:49,054 INFO L93 Difference]: Finished difference Result 184 states and 465 transitions. [2020-10-16 12:09:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:09:49,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 12:09:49,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:49,056 INFO L225 Difference]: With dead ends: 184 [2020-10-16 12:09:49,056 INFO L226 Difference]: Without dead ends: 88 [2020-10-16 12:09:49,061 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 12:09:49,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-16 12:09:49,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-10-16 12:09:49,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-16 12:09:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 207 transitions. [2020-10-16 12:09:49,075 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 207 transitions. Word has length 9 [2020-10-16 12:09:49,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:49,077 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 207 transitions. [2020-10-16 12:09:49,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:49,077 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 207 transitions. [2020-10-16 12:09:49,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:09:49,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:49,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:49,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:09:49,079 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:49,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:49,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1248093964, now seen corresponding path program 1 times [2020-10-16 12:09:49,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:49,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264740508] [2020-10-16 12:09:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:49,177 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 12:09:49,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264740508] [2020-10-16 12:09:49,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:49,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:09:49,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283699054] [2020-10-16 12:09:49,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:49,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:49,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:49,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:49,181 INFO L87 Difference]: Start difference. First operand 88 states and 207 transitions. Second operand 4 states. [2020-10-16 12:09:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:49,210 INFO L93 Difference]: Finished difference Result 118 states and 268 transitions. [2020-10-16 12:09:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:09:49,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:09:49,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:49,211 INFO L225 Difference]: With dead ends: 118 [2020-10-16 12:09:49,211 INFO L226 Difference]: Without dead ends: 64 [2020-10-16 12:09:49,212 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 12:09:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-16 12:09:49,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-16 12:09:49,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-16 12:09:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 137 transitions. [2020-10-16 12:09:49,218 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 137 transitions. Word has length 11 [2020-10-16 12:09:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:49,219 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 137 transitions. [2020-10-16 12:09:49,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-10-16 12:09:49,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:09:49,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:49,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:49,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:09:49,220 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:49,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:49,221 INFO L82 PathProgramCache]: Analyzing trace with hash 500064419, now seen corresponding path program 1 times [2020-10-16 12:09:49,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:49,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446561283] [2020-10-16 12:09:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:49,275 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 12:09:49,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446561283] [2020-10-16 12:09:49,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:49,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:09:49,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889341951] [2020-10-16 12:09:49,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:49,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:49,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:49,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:49,278 INFO L87 Difference]: Start difference. First operand 64 states and 137 transitions. Second operand 4 states. [2020-10-16 12:09:49,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:49,317 INFO L93 Difference]: Finished difference Result 77 states and 150 transitions. [2020-10-16 12:09:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:09:49,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:09:49,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:49,320 INFO L225 Difference]: With dead ends: 77 [2020-10-16 12:09:49,320 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 12:09:49,320 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 12:09:49,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 12:09:49,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 12:09:49,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 12:09:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 109 transitions. [2020-10-16 12:09:49,325 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 109 transitions. Word has length 12 [2020-10-16 12:09:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:49,326 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 109 transitions. [2020-10-16 12:09:49,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions. [2020-10-16 12:09:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:09:49,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:49,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:49,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:09:49,327 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:49,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:49,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1337478729, now seen corresponding path program 1 times [2020-10-16 12:09:49,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:49,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017405547] [2020-10-16 12:09:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:49,381 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 12:09:49,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017405547] [2020-10-16 12:09:49,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:49,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:09:49,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255352234] [2020-10-16 12:09:49,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:09:49,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:49,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:09:49,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:49,386 INFO L87 Difference]: Start difference. First operand 56 states and 109 transitions. Second operand 5 states. [2020-10-16 12:09:49,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:49,433 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2020-10-16 12:09:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:09:49,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 12:09:49,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:49,434 INFO L225 Difference]: With dead ends: 57 [2020-10-16 12:09:49,434 INFO L226 Difference]: Without dead ends: 42 [2020-10-16 12:09:49,435 INFO L677 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 [2020-10-16 12:09:49,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-16 12:09:49,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-16 12:09:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-16 12:09:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2020-10-16 12:09:49,438 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 13 [2020-10-16 12:09:49,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:49,438 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2020-10-16 12:09:49,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:09:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2020-10-16 12:09:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:09:49,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:49,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:49,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:09:49,440 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:49,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1451530590, now seen corresponding path program 1 times [2020-10-16 12:09:49,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:49,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466809621] [2020-10-16 12:09:49,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:49,554 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 12:09:49,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466809621] [2020-10-16 12:09:49,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:49,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:09:49,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000689873] [2020-10-16 12:09:49,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:09:49,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:49,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:09:49,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:09:49,557 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand 6 states. [2020-10-16 12:09:49,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:49,624 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-16 12:09:49,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:09:49,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 12:09:49,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:49,625 INFO L225 Difference]: With dead ends: 39 [2020-10-16 12:09:49,625 INFO L226 Difference]: Without dead ends: 33 [2020-10-16 12:09:49,626 INFO L677 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 [2020-10-16 12:09:49,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-16 12:09:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-16 12:09:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-16 12:09:49,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-16 12:09:49,630 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2020-10-16 12:09:49,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:49,631 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-16 12:09:49,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:09:49,631 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-16 12:09:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:09:49,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:49,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:49,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:09:49,632 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:49,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:49,632 INFO L82 PathProgramCache]: Analyzing trace with hash -958438309, now seen corresponding path program 1 times [2020-10-16 12:09:49,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:49,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882734614] [2020-10-16 12:09:49,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:49,681 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 12:09:49,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882734614] [2020-10-16 12:09:49,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:49,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:09:49,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261489607] [2020-10-16 12:09:49,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:49,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:49,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:49,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:49,684 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-10-16 12:09:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:49,697 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-16 12:09:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:09:49,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 12:09:49,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:49,698 INFO L225 Difference]: With dead ends: 32 [2020-10-16 12:09:49,698 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:09:49,699 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 12:09:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:09:49,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:09:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:09:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:09:49,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 12:09:49,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:49,700 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:09:49,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:09:49,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:09:49,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:09:49,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:09:49 BasicIcfg [2020-10-16 12:09:49,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:09:49,706 INFO L168 Benchmark]: Toolchain (without parser) took 4173.96 ms. Allocated memory was 147.3 MB in the beginning and 247.5 MB in the end (delta: 100.1 MB). Free memory was 102.4 MB in the beginning and 209.9 MB in the end (delta: -107.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:09:49,707 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:09:49,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.12 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 102.0 MB in the beginning and 163.1 MB in the end (delta: -61.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:49,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.07 ms. Allocated memory is still 205.5 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:49,710 INFO L168 Benchmark]: Boogie Preprocessor took 28.04 ms. Allocated memory is still 205.5 MB. Free memory was 161.1 MB in the beginning and 159.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:49,710 INFO L168 Benchmark]: RCFGBuilder took 431.64 ms. Allocated memory is still 205.5 MB. Free memory was 159.8 MB in the beginning and 137.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:49,711 INFO L168 Benchmark]: TraceAbstraction took 2979.95 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 137.1 MB in the beginning and 209.9 MB in the end (delta: -72.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:09:49,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.12 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 102.0 MB in the beginning and 163.1 MB in the end (delta: -61.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.07 ms. Allocated memory is still 205.5 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.04 ms. Allocated memory is still 205.5 MB. Free memory was 161.1 MB in the beginning and 159.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.64 ms. Allocated memory is still 205.5 MB. Free memory was 159.8 MB in the beginning and 137.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2979.95 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 137.1 MB in the beginning and 209.9 MB in the end (delta: -72.8 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 621 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 26 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 77 PlacesBefore, 30 PlacesAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 2102 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 109 SDtfs, 110 SDslu, 133 SDs, 0 SdLazy, 99 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 1 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2904 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...