/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:03:42,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:03:42,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:03:42,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:03:42,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:03:42,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:03:42,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:03:42,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:03:42,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:03:42,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:03:42,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:03:42,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:03:42,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:03:42,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:03:42,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:03:42,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:03:42,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:03:42,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:03:42,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:03:42,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:03:42,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:03:42,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:03:42,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:03:42,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:03:42,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:03:42,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:03:42,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:03:42,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:03:42,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:03:42,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:03:42,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:03:42,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:03:42,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:03:42,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:03:42,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:03:42,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:03:42,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-11-11 18:03:42,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:03:42,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:03:42,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:03:42,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:03:42,332 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:03:42,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:03:42,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:03:42,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:03:42,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:03:42,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:03:42,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:03:42,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:03:42,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:03:42,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:03:42,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:03:42,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:03:42,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:03:42,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:03:42,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:03:42,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:03:42,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:03:42,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:03:42,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:03:42,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:03:42,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:03:42,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:03:42,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:03:42,337 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:03:42,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:03:42,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:03:42,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:03:42,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:03:42,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:03:42,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:03:42,793 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:03:42,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-11-11 18:03:42,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d5c206/d4a26a248f694af598aec103d847b4f2/FLAG6c4bf3ec3 [2020-11-11 18:03:43,612 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:03:43,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-11-11 18:03:43,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d5c206/d4a26a248f694af598aec103d847b4f2/FLAG6c4bf3ec3 [2020-11-11 18:03:43,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d5c206/d4a26a248f694af598aec103d847b4f2 [2020-11-11 18:03:43,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:03:43,877 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:03:43,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:03:43,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:03:43,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:03:43,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:03:43" (1/1) ... [2020-11-11 18:03:43,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7700104a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:43, skipping insertion in model container [2020-11-11 18:03:43,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:03:43" (1/1) ... [2020-11-11 18:03:43,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:03:43,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:03:44,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:03:44,352 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:03:44,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:03:44,520 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:03:44,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44 WrapperNode [2020-11-11 18:03:44,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:03:44,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:03:44,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:03:44,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:03:44,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:03:44,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:03:44,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:03:44,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:03:44,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... [2020-11-11 18:03:44,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:03:44,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:03:44,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:03:44,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:03:44,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:03:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:03:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:03:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:03:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:03:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:03:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:03:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:03:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:03:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:03:44,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:03:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:03:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:03:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:03:44,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:03:44,686 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:03:45,178 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:03:45,179 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:03:45,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:03:45 BoogieIcfgContainer [2020-11-11 18:03:45,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:03:45,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:03:45,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:03:45,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:03:45,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:03:43" (1/3) ... [2020-11-11 18:03:45,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a291b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:03:45, skipping insertion in model container [2020-11-11 18:03:45,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:03:44" (2/3) ... [2020-11-11 18:03:45,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a291b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:03:45, skipping insertion in model container [2020-11-11 18:03:45,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:03:45" (3/3) ... [2020-11-11 18:03:45,190 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2020-11-11 18:03:45,207 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:03:45,207 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:03:45,211 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:03:45,212 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:03:45,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,250 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,251 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,255 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,256 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,256 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,257 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,260 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,261 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,261 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,261 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,269 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,276 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,276 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:03:45,280 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:03:45,293 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 18:03:45,319 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:03:45,319 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:03:45,319 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:03:45,319 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:03:45,320 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:03:45,320 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:03:45,320 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:03:45,320 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:03:45,334 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-11 18:03:46,359 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:46,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:03:46,455 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:46,456 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:46,456 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:46,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:46,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-11 18:03:46,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:46,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169497419] [2020-11-11 18:03:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:47,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169497419] [2020-11-11 18:03:47,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:47,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:47,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477030097] [2020-11-11 18:03:47,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:47,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:47,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:47,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:47,081 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:47,650 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2020-11-11 18:03:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-11-11 18:03:47,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:47,728 INFO L225 Difference]: With dead ends: 12200 [2020-11-11 18:03:47,729 INFO L226 Difference]: Without dead ends: 4605 [2020-11-11 18:03:47,730 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2020-11-11 18:03:48,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4605. [2020-11-11 18:03:48,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4605 states, 4604 states have (on average 3.415291051259774) internal successors, (15724), 4604 states have internal predecessors, (15724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 15724 transitions. [2020-11-11 18:03:48,308 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 15724 transitions. Word has length 42 [2020-11-11 18:03:48,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:48,309 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states and 15724 transitions. [2020-11-11 18:03:48,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 15724 transitions. [2020-11-11 18:03:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:03:48,323 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:48,323 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:48,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:03:48,324 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:48,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:48,325 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2020-11-11 18:03:48,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:48,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729430774] [2020-11-11 18:03:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:48,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729430774] [2020-11-11 18:03:48,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:48,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:48,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244883382] [2020-11-11 18:03:48,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:48,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:48,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:48,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:48,580 INFO L87 Difference]: Start difference. First operand 4605 states and 15724 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:49,005 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2020-11-11 18:03:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:03:49,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-11-11 18:03:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:49,074 INFO L225 Difference]: With dead ends: 5725 [2020-11-11 18:03:49,074 INFO L226 Difference]: Without dead ends: 3030 [2020-11-11 18:03:49,076 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:03:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-11-11 18:03:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2020-11-11 18:03:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 3.2756685374711125) internal successors, (9922), 3029 states have internal predecessors, (9922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 9922 transitions. [2020-11-11 18:03:49,223 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 9922 transitions. Word has length 44 [2020-11-11 18:03:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:49,224 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 9922 transitions. [2020-11-11 18:03:49,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 9922 transitions. [2020-11-11 18:03:49,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:03:49,238 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:49,238 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:49,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:03:49,239 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:49,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:49,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2020-11-11 18:03:49,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:49,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119488725] [2020-11-11 18:03:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:49,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119488725] [2020-11-11 18:03:49,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:49,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:49,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319990203] [2020-11-11 18:03:49,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:49,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:49,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:49,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:49,483 INFO L87 Difference]: Start difference. First operand 3030 states and 9922 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:49,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:49,790 INFO L93 Difference]: Finished difference Result 3366 states and 10910 transitions. [2020-11-11 18:03:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:49,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-11 18:03:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:49,815 INFO L225 Difference]: With dead ends: 3366 [2020-11-11 18:03:49,816 INFO L226 Difference]: Without dead ends: 2806 [2020-11-11 18:03:49,816 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:49,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2020-11-11 18:03:49,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2806. [2020-11-11 18:03:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2805 states have (on average 3.2491978609625667) internal successors, (9114), 2805 states have internal predecessors, (9114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 9114 transitions. [2020-11-11 18:03:49,944 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 9114 transitions. Word has length 47 [2020-11-11 18:03:49,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:49,944 INFO L481 AbstractCegarLoop]: Abstraction has 2806 states and 9114 transitions. [2020-11-11 18:03:49,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 9114 transitions. [2020-11-11 18:03:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-11 18:03:49,954 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:49,955 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:49,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:03:49,955 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:49,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2020-11-11 18:03:49,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:49,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751773126] [2020-11-11 18:03:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:50,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751773126] [2020-11-11 18:03:50,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:50,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:50,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673596962] [2020-11-11 18:03:50,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:50,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:50,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:50,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:50,149 INFO L87 Difference]: Start difference. First operand 2806 states and 9114 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:50,416 INFO L93 Difference]: Finished difference Result 2998 states and 9642 transitions. [2020-11-11 18:03:50,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:50,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-11-11 18:03:50,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:50,439 INFO L225 Difference]: With dead ends: 2998 [2020-11-11 18:03:50,439 INFO L226 Difference]: Without dead ends: 2550 [2020-11-11 18:03:50,440 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:50,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2020-11-11 18:03:50,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2550. [2020-11-11 18:03:50,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2549 states have (on average 3.224009415457042) internal successors, (8218), 2549 states have internal predecessors, (8218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 8218 transitions. [2020-11-11 18:03:50,538 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 8218 transitions. Word has length 48 [2020-11-11 18:03:50,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:50,538 INFO L481 AbstractCegarLoop]: Abstraction has 2550 states and 8218 transitions. [2020-11-11 18:03:50,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 8218 transitions. [2020-11-11 18:03:50,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:03:50,547 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:50,547 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:50,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:03:50,547 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:50,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:50,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1695398517, now seen corresponding path program 1 times [2020-11-11 18:03:50,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:50,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418783758] [2020-11-11 18:03:50,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:50,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418783758] [2020-11-11 18:03:50,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:50,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:50,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265941158] [2020-11-11 18:03:50,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:50,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:50,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:50,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:50,709 INFO L87 Difference]: Start difference. First operand 2550 states and 8218 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:50,874 INFO L93 Difference]: Finished difference Result 3930 states and 12677 transitions. [2020-11-11 18:03:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:03:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-11 18:03:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:50,896 INFO L225 Difference]: With dead ends: 3930 [2020-11-11 18:03:50,896 INFO L226 Difference]: Without dead ends: 2260 [2020-11-11 18:03:50,897 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2020-11-11 18:03:50,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2020-11-11 18:03:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 2259 states have (on average 3.2284196547144752) internal successors, (7293), 2259 states have internal predecessors, (7293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 7293 transitions. [2020-11-11 18:03:51,010 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 7293 transitions. Word has length 50 [2020-11-11 18:03:51,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:51,011 INFO L481 AbstractCegarLoop]: Abstraction has 2260 states and 7293 transitions. [2020-11-11 18:03:51,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 7293 transitions. [2020-11-11 18:03:51,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:03:51,020 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:51,020 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:51,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:03:51,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:51,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:51,022 INFO L82 PathProgramCache]: Analyzing trace with hash 366921643, now seen corresponding path program 2 times [2020-11-11 18:03:51,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:51,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58166932] [2020-11-11 18:03:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:51,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58166932] [2020-11-11 18:03:51,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:51,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:51,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168062599] [2020-11-11 18:03:51,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:51,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:51,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:51,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:51,201 INFO L87 Difference]: Start difference. First operand 2260 states and 7293 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:51,356 INFO L93 Difference]: Finished difference Result 3140 states and 10117 transitions. [2020-11-11 18:03:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-11 18:03:51,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-11 18:03:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:51,367 INFO L225 Difference]: With dead ends: 3140 [2020-11-11 18:03:51,367 INFO L226 Difference]: Without dead ends: 1760 [2020-11-11 18:03:51,367 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:51,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2020-11-11 18:03:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1760. [2020-11-11 18:03:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1759 states have (on average 3.159749857873792) internal successors, (5558), 1759 states have internal predecessors, (5558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 5558 transitions. [2020-11-11 18:03:51,443 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 5558 transitions. Word has length 50 [2020-11-11 18:03:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:51,444 INFO L481 AbstractCegarLoop]: Abstraction has 1760 states and 5558 transitions. [2020-11-11 18:03:51,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 5558 transitions. [2020-11-11 18:03:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:03:51,450 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:51,450 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:51,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:03:51,451 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:51,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1518373285, now seen corresponding path program 3 times [2020-11-11 18:03:51,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:51,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466035665] [2020-11-11 18:03:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:51,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:51,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466035665] [2020-11-11 18:03:51,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:51,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:03:51,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978966145] [2020-11-11 18:03:51,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:03:51,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:51,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:03:51,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:03:51,631 INFO L87 Difference]: Start difference. First operand 1760 states and 5558 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:51,814 INFO L93 Difference]: Finished difference Result 2226 states and 6963 transitions. [2020-11-11 18:03:51,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:03:51,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-11 18:03:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:51,823 INFO L225 Difference]: With dead ends: 2226 [2020-11-11 18:03:51,823 INFO L226 Difference]: Without dead ends: 1634 [2020-11-11 18:03:51,824 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:51,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2020-11-11 18:03:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2020-11-11 18:03:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1633 states have (on average 3.140845070422535) internal successors, (5129), 1633 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 5129 transitions. [2020-11-11 18:03:51,909 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 5129 transitions. Word has length 50 [2020-11-11 18:03:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:51,910 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 5129 transitions. [2020-11-11 18:03:51,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 5129 transitions. [2020-11-11 18:03:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:03:51,915 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:51,915 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:51,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:03:51,915 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:51,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:51,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1388621878, now seen corresponding path program 1 times [2020-11-11 18:03:51,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:51,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593703634] [2020-11-11 18:03:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:52,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593703634] [2020-11-11 18:03:52,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:52,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:52,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958362048] [2020-11-11 18:03:52,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:52,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:52,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:52,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:52,110 INFO L87 Difference]: Start difference. First operand 1634 states and 5129 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:52,312 INFO L93 Difference]: Finished difference Result 1793 states and 5496 transitions. [2020-11-11 18:03:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:03:52,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-11 18:03:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:52,318 INFO L225 Difference]: With dead ends: 1793 [2020-11-11 18:03:52,318 INFO L226 Difference]: Without dead ends: 1289 [2020-11-11 18:03:52,319 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:03:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2020-11-11 18:03:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2020-11-11 18:03:52,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1288 states have (on average 3.034937888198758) internal successors, (3909), 1288 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 3909 transitions. [2020-11-11 18:03:52,361 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 3909 transitions. Word has length 51 [2020-11-11 18:03:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:52,361 INFO L481 AbstractCegarLoop]: Abstraction has 1289 states and 3909 transitions. [2020-11-11 18:03:52,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 3909 transitions. [2020-11-11 18:03:52,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-11 18:03:52,366 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:52,366 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:52,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:03:52,366 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:52,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:52,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1603073441, now seen corresponding path program 1 times [2020-11-11 18:03:52,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:52,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687522747] [2020-11-11 18:03:52,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:52,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687522747] [2020-11-11 18:03:52,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:52,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:03:52,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617525847] [2020-11-11 18:03:52,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:03:52,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:52,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:03:52,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:03:52,487 INFO L87 Difference]: Start difference. First operand 1289 states and 3909 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:52,686 INFO L93 Difference]: Finished difference Result 1055 states and 3066 transitions. [2020-11-11 18:03:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:03:52,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-11-11 18:03:52,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:52,690 INFO L225 Difference]: With dead ends: 1055 [2020-11-11 18:03:52,690 INFO L226 Difference]: Without dead ends: 731 [2020-11-11 18:03:52,690 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:03:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2020-11-11 18:03:52,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 731. [2020-11-11 18:03:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 2.8068493150684932) internal successors, (2049), 730 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2049 transitions. [2020-11-11 18:03:52,713 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2049 transitions. Word has length 52 [2020-11-11 18:03:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:52,713 INFO L481 AbstractCegarLoop]: Abstraction has 731 states and 2049 transitions. [2020-11-11 18:03:52,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2049 transitions. [2020-11-11 18:03:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:03:52,716 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:03:52,716 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:03:52,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:03:52,716 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:03:52,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:03:52,717 INFO L82 PathProgramCache]: Analyzing trace with hash -986251264, now seen corresponding path program 1 times [2020-11-11 18:03:52,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:03:52,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97086580] [2020-11-11 18:03:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:03:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:03:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:03:52,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97086580] [2020-11-11 18:03:52,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:03:52,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:03:52,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642089891] [2020-11-11 18:03:52,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:03:52,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:03:52,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:03:52,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:03:52,821 INFO L87 Difference]: Start difference. First operand 731 states and 2049 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:03:52,915 INFO L93 Difference]: Finished difference Result 623 states and 1725 transitions. [2020-11-11 18:03:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:03:52,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-11 18:03:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:03:52,916 INFO L225 Difference]: With dead ends: 623 [2020-11-11 18:03:52,916 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:03:52,917 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:03:52,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:03:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:03:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:03:52,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-11 18:03:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:03:52,918 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:03:52,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:03:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:03:52,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:03:52,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 18:03:52,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:03:52 BasicIcfg [2020-11-11 18:03:52,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:03:52,928 INFO L168 Benchmark]: Toolchain (without parser) took 9054.30 ms. Allocated memory was 314.6 MB in the beginning and 719.3 MB in the end (delta: 404.8 MB). Free memory was 288.6 MB in the beginning and 453.3 MB in the end (delta: -164.7 MB). Peak memory consumption was 242.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:52,928 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 314.6 MB. Free memory was 285.8 MB in the beginning and 285.7 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:03:52,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.19 ms. Allocated memory is still 314.6 MB. Free memory was 287.9 MB in the beginning and 289.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:52,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.16 ms. Allocated memory is still 314.6 MB. Free memory was 289.0 MB in the beginning and 286.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:03:52,931 INFO L168 Benchmark]: Boogie Preprocessor took 27.80 ms. Allocated memory is still 314.6 MB. Free memory was 286.9 MB in the beginning and 284.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:52,931 INFO L168 Benchmark]: RCFGBuilder took 580.08 ms. Allocated memory is still 314.6 MB. Free memory was 284.8 MB in the beginning and 261.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:52,932 INFO L168 Benchmark]: TraceAbstraction took 7742.01 ms. Allocated memory was 314.6 MB in the beginning and 719.3 MB in the end (delta: 404.8 MB). Free memory was 260.7 MB in the beginning and 453.3 MB in the end (delta: -192.6 MB). Peak memory consumption was 212.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:03:52,936 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 314.6 MB. Free memory was 285.8 MB in the beginning and 285.7 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 642.19 ms. Allocated memory is still 314.6 MB. Free memory was 287.9 MB in the beginning and 289.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.16 ms. Allocated memory is still 314.6 MB. Free memory was 289.0 MB in the beginning and 286.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.80 ms. Allocated memory is still 314.6 MB. Free memory was 286.9 MB in the beginning and 284.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 580.08 ms. Allocated memory is still 314.6 MB. Free memory was 284.8 MB in the beginning and 261.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7742.01 ms. Allocated memory was 314.6 MB in the beginning and 719.3 MB in the end (delta: 404.8 MB). Free memory was 260.7 MB in the beginning and 453.3 MB in the end (delta: -192.6 MB). Peak memory consumption was 212.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 941 SDtfs, 1185 SDslu, 3087 SDs, 0 SdLazy, 368 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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: 1.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 488 NumberOfCodeBlocks, 488 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 60478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...