/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:22:25,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:22:25,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:22:25,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:22:25,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:22:25,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:22:25,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:22:25,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:22:25,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:22:25,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:22:25,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:22:25,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:22:25,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:22:25,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:22:25,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:22:25,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:22:25,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:22:25,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:22:25,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:22:25,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:22:25,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:22:25,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:22:25,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:22:25,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:22:25,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:22:25,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:22:25,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:22:25,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:22:25,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:22:25,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:22:25,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:22:25,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:22:25,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:22:25,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:22:25,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:22:25,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:22:25,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:22:25,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:22:25,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:22:25,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:22:25,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:22:25,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:22:25,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:22:25,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:22:25,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:22:25,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:22:25,312 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:22:25,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:22:25,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:22:25,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:22:25,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:22:25,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:22:25,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:22:25,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:22:25,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:22:25,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:22:25,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:22:25,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:22:25,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:22:25,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:22:25,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:22:25,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:22:25,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:22:25,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:22:25,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:22:25,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:22:25,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:22:25,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:22:25,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:22:25,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:22:25,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:22:25,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:22:25,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:22:25,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:22:25,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:22:25,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:22:25,632 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:22:25,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-10-16 11:22:25,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cec4868f3/1f6c992bd9f24552b4376378711b5ec3/FLAG20af8be60 [2020-10-16 11:22:26,279 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:22:26,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-10-16 11:22:26,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cec4868f3/1f6c992bd9f24552b4376378711b5ec3/FLAG20af8be60 [2020-10-16 11:22:26,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cec4868f3/1f6c992bd9f24552b4376378711b5ec3 [2020-10-16 11:22:26,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:22:26,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:22:26,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:26,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:22:26,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:22:26,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:26" (1/1) ... [2020-10-16 11:22:26,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ddbbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:26, skipping insertion in model container [2020-10-16 11:22:26,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:26" (1/1) ... [2020-10-16 11:22:26,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:22:26,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:22:27,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:27,187 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:22:27,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:27,307 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:22:27,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27 WrapperNode [2020-10-16 11:22:27,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:27,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:27,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:22:27,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:22:27,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:27,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:22:27,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:22:27,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:22:27,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:22:27,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:22:27,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:22:27,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:22:27,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (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 11:22:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:22:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:22:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:22:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:22:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:22:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:22:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:22:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:22:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:22:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:22:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:22:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:22:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:22:27,475 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 11:22:27,839 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:22:27,840 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:22:27,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:27 BoogieIcfgContainer [2020-10-16 11:22:27,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:22:27,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:22:27,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:22:27,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:22:27,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:22:26" (1/3) ... [2020-10-16 11:22:27,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e492449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:27, skipping insertion in model container [2020-10-16 11:22:27,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27" (2/3) ... [2020-10-16 11:22:27,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e492449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:27, skipping insertion in model container [2020-10-16 11:22:27,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:27" (3/3) ... [2020-10-16 11:22:27,852 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2020-10-16 11:22:27,864 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:22:27,865 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:22:27,873 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:22:27,874 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:22:27,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,917 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,917 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,917 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,918 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,925 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,925 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,925 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,925 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,937 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,937 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,938 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,942 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,942 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:27,949 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:22:27,964 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:22:27,984 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:22:27,984 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:22:27,984 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:22:27,984 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:22:27,985 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:22:27,985 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:22:27,985 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:22:27,985 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:22:27,998 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:22:28,001 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:22:28,004 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:22:28,006 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 11:22:28,054 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 11:22:28,054 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:22:28,060 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:22:28,064 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:22:29,735 INFO L132 LiptonReduction]: Checked pairs total: 2842 [2020-10-16 11:22:29,735 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-16 11:22:29,745 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 11:22:29,778 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 11:22:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 11:22:29,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:22:29,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:29,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:29,791 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:29,797 INFO L82 PathProgramCache]: Analyzing trace with hash 760003701, now seen corresponding path program 1 times [2020-10-16 11:22:29,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:29,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706633383] [2020-10-16 11:22:29,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,028 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 11:22:30,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706633383] [2020-10-16 11:22:30,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:22:30,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903293787] [2020-10-16 11:22:30,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:30,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:30,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:30,056 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 11:22:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,106 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 11:22:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:30,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:22:30,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,125 INFO L225 Difference]: With dead ends: 290 [2020-10-16 11:22:30,126 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 11:22:30,127 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 11:22:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 11:22:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 11:22:30,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 11:22:30,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 11:22:30,202 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 11:22:30,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,203 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 11:22:30,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:30,204 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 11:22:30,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:22:30,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:22:30,206 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2069729619, now seen corresponding path program 1 times [2020-10-16 11:22:30,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813892258] [2020-10-16 11:22:30,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,319 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 11:22:30,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813892258] [2020-10-16 11:22:30,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:30,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421845619] [2020-10-16 11:22:30,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:30,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:30,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:30,323 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 4 states. [2020-10-16 11:22:30,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,368 INFO L93 Difference]: Finished difference Result 242 states and 605 transitions. [2020-10-16 11:22:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:30,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:22:30,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,371 INFO L225 Difference]: With dead ends: 242 [2020-10-16 11:22:30,371 INFO L226 Difference]: Without dead ends: 178 [2020-10-16 11:22:30,372 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 11:22:30,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-16 11:22:30,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-10-16 11:22:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-16 11:22:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 434 transitions. [2020-10-16 11:22:30,389 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 434 transitions. Word has length 9 [2020-10-16 11:22:30,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,389 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 434 transitions. [2020-10-16 11:22:30,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:30,390 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 434 transitions. [2020-10-16 11:22:30,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:22:30,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:22:30,392 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1183022512, now seen corresponding path program 1 times [2020-10-16 11:22:30,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462953910] [2020-10-16 11:22:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:30,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462953910] [2020-10-16 11:22:30,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:30,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566840247] [2020-10-16 11:22:30,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:30,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:30,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:30,482 INFO L87 Difference]: Start difference. First operand 178 states and 434 transitions. Second operand 5 states. [2020-10-16 11:22:30,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,531 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-10-16 11:22:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:22:30,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-16 11:22:30,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,533 INFO L225 Difference]: With dead ends: 163 [2020-10-16 11:22:30,533 INFO L226 Difference]: Without dead ends: 126 [2020-10-16 11:22:30,533 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 11:22:30,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-16 11:22:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-16 11:22:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-16 11:22:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-10-16 11:22:30,544 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-10-16 11:22:30,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,544 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-10-16 11:22:30,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-10-16 11:22:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:22:30,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:22:30,547 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1548024821, now seen corresponding path program 1 times [2020-10-16 11:22:30,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280760885] [2020-10-16 11:22:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,639 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 11:22:30,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280760885] [2020-10-16 11:22:30,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:30,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040613349] [2020-10-16 11:22:30,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:22:30,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:22:30,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:22:30,649 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-10-16 11:22:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,720 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-16 11:22:30,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:22:30,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 11:22:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,721 INFO L225 Difference]: With dead ends: 118 [2020-10-16 11:22:30,721 INFO L226 Difference]: Without dead ends: 108 [2020-10-16 11:22:30,722 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 11:22:30,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-16 11:22:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-16 11:22:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-16 11:22:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-16 11:22:30,728 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-16 11:22:30,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,728 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-16 11:22:30,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:22:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-16 11:22:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:22:30,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:22:30,730 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2137678742, now seen corresponding path program 1 times [2020-10-16 11:22:30,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250729881] [2020-10-16 11:22:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,770 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 11:22:30,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250729881] [2020-10-16 11:22:30,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:30,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698490320] [2020-10-16 11:22:30,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:30,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:30,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:30,773 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 3 states. [2020-10-16 11:22:30,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,780 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-16 11:22:30,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:30,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-16 11:22:30,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,782 INFO L225 Difference]: With dead ends: 133 [2020-10-16 11:22:30,782 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 11:22:30,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 11:22:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 11:22:30,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 11:22:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 11:22:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-16 11:22:30,786 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-16 11:22:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,786 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-16 11:22:30,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-16 11:22:30,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:22:30,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:22:30,788 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1164645812, now seen corresponding path program 2 times [2020-10-16 11:22:30,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534807943] [2020-10-16 11:22:30,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,828 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 11:22:30,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534807943] [2020-10-16 11:22:30,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:30,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708549595] [2020-10-16 11:22:30,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:30,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:30,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:30,830 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-16 11:22:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,843 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-10-16 11:22:30,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:22:30,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 11:22:30,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,844 INFO L225 Difference]: With dead ends: 67 [2020-10-16 11:22:30,844 INFO L226 Difference]: Without dead ends: 30 [2020-10-16 11:22:30,845 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 11:22:30,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-16 11:22:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-16 11:22:30,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-16 11:22:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-16 11:22:30,847 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-16 11:22:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,848 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-16 11:22:30,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:30,848 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-16 11:22:30,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:22:30,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:22:30,849 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2098338434, now seen corresponding path program 3 times [2020-10-16 11:22:30,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488272057] [2020-10-16 11:22:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,885 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 11:22:30,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488272057] [2020-10-16 11:22:30,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:30,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086717612] [2020-10-16 11:22:30,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:30,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:30,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:30,887 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-16 11:22:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,897 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-16 11:22:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:22:30,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 11:22:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,898 INFO L225 Difference]: With dead ends: 29 [2020-10-16 11:22:30,898 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:22:30,898 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 11:22:30,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:22:30,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:22:30,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:22:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:22:30,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 11:22:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,900 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:22:30,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:30,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:22:30,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:22:30,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:22:30,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:22:30 BasicIcfg [2020-10-16 11:22:30,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:22:30,908 INFO L168 Benchmark]: Toolchain (without parser) took 4338.54 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 102.5 MB in the beginning and 182.9 MB in the end (delta: -80.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:30,909 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 11:22:30,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.41 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 160.5 MB in the end (delta: -58.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:30,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.30 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:30,911 INFO L168 Benchmark]: Boogie Preprocessor took 29.26 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:30,912 INFO L168 Benchmark]: RCFGBuilder took 451.48 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 135.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:30,913 INFO L168 Benchmark]: TraceAbstraction took 3060.99 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 134.4 MB in the beginning and 182.9 MB in the end (delta: -48.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:22:30,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.41 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 160.5 MB in the end (delta: -58.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.30 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.26 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.48 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 135.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3060.99 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 134.4 MB in the beginning and 182.9 MB in the end (delta: -48.5 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 862 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 70 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2842 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 141 SDtfs, 114 SDslu, 191 SDs, 0 SdLazy, 96 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2838 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...