/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/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:49:15,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:49:15,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:49:15,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:49:15,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:49:15,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:49:15,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:49:15,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:49:15,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:49:15,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:49:15,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:49:15,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:49:15,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:49:15,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:49:15,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:49:15,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:49:15,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:49:15,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:49:15,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:49:15,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:49:15,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:49:15,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:49:15,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:49:15,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:49:15,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:49:15,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:49:15,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:49:15,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:49:15,210 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 [2021-01-20 14:49:15,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:49:15,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:49:15,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:49:15,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:49:15,248 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:49:15,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:49:15,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:49:15,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:49:15,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:49:15,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:49:15,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:49:15,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:49:15,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:49:15,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:49:15,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:49:15,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:49:15,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:49:15,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:49:15,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:49:15,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:49:15,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:49:15,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:49:15,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:49:15,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:49:15,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:49:15,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:49:15,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:49:15,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:49:15,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:49:15,255 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:49:15,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:49:15,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:49:15,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:49:15,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:49:15,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:49:15,652 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:49:15,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2021-01-20 14:49:15,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5350869/15aa0b361a7544b598050765225654f5/FLAG78366774e [2021-01-20 14:49:16,497 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:49:16,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2021-01-20 14:49:16,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5350869/15aa0b361a7544b598050765225654f5/FLAG78366774e [2021-01-20 14:49:16,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5350869/15aa0b361a7544b598050765225654f5 [2021-01-20 14:49:16,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:49:16,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:49:16,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:49:16,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:49:16,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:49:16,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:49:16" (1/1) ... [2021-01-20 14:49:16,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17295fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:16, skipping insertion in model container [2021-01-20 14:49:16,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:49:16" (1/1) ... [2021-01-20 14:49:16,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:49:16,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:49:17,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:49:17,387 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:49:17,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:49:17,596 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:49:17,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17 WrapperNode [2021-01-20 14:49:17,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:49:17,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:49:17,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:49:17,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:49:17,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:49:17,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:49:17,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:49:17,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:49:17,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (1/1) ... [2021-01-20 14:49:17,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:49:17,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:49:17,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:49:17,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:49:17,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (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 [2021-01-20 14:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:49:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:49:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:49:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:49:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:49:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:49:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:49:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:49:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:49:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:49:17,861 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:49:18,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:49:18,223 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:49:18,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:49:18 BoogieIcfgContainer [2021-01-20 14:49:18,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:49:18,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:49:18,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:49:18,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:49:18,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:49:16" (1/3) ... [2021-01-20 14:49:18,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f5498f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:49:18, skipping insertion in model container [2021-01-20 14:49:18,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:17" (2/3) ... [2021-01-20 14:49:18,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f5498f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:49:18, skipping insertion in model container [2021-01-20 14:49:18,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:49:18" (3/3) ... [2021-01-20 14:49:18,235 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2021-01-20 14:49:18,254 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:49:18,254 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:49:18,259 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:49:18,260 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:49:18,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,291 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,300 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,315 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,315 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:18,317 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:49:18,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:49:18,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:49:18,357 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:49:18,358 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:49:18,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:49:18,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:49:18,358 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:49:18,358 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:49:18,358 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:49:18,372 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 14:49:19,246 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:49:19,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:49:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:49:19,339 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:19,340 INFO L504 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] [2021-01-20 14:49:19,341 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:19,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:19,348 INFO L82 PathProgramCache]: Analyzing trace with hash 122866376, now seen corresponding path program 1 times [2021-01-20 14:49:19,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:19,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426402754] [2021-01-20 14:49:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:19,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426402754] [2021-01-20 14:49:19,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:19,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:49:19,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876486794] [2021-01-20 14:49:19,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:49:19,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:19,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:49:19,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:49:19,858 INFO L87 Difference]: Start difference. First operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:49:20,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:20,261 INFO L93 Difference]: Finished difference Result 10464 states and 36160 transitions. [2021-01-20 14:49:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:49:20,263 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 [2021-01-20 14:49:20,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:20,321 INFO L225 Difference]: With dead ends: 10464 [2021-01-20 14:49:20,321 INFO L226 Difference]: Without dead ends: 3954 [2021-01-20 14:49:20,323 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:20,324 INFO L78 Accepts]: Start accepts. Automaton has 3954 states. Word has length 42 [2021-01-20 14:49:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:20,326 INFO L481 AbstractCegarLoop]: Abstraction has 3954 states. [2021-01-20 14:49:20,326 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) [2021-01-20 14:49:20,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states. [2021-01-20 14:49:20,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:49:20,343 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:20,343 INFO L504 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] [2021-01-20 14:49:20,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:49:20,344 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:20,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1872350423, now seen corresponding path program 1 times [2021-01-20 14:49:20,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:20,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513237959] [2021-01-20 14:49:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:20,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513237959] [2021-01-20 14:49:20,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:20,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:20,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133739006] [2021-01-20 14:49:20,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:20,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:20,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:20,579 INFO L87 Difference]: Start difference. First operand 3954 states. 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) [2021-01-20 14:49:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:20,867 INFO L93 Difference]: Finished difference Result 5214 states and 17478 transitions. [2021-01-20 14:49:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:49:20,868 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 [2021-01-20 14:49:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:20,896 INFO L225 Difference]: With dead ends: 5214 [2021-01-20 14:49:20,896 INFO L226 Difference]: Without dead ends: 2904 [2021-01-20 14:49:20,899 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:49:20,899 INFO L78 Accepts]: Start accepts. Automaton has 2904 states. Word has length 44 [2021-01-20 14:49:20,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:20,901 INFO L481 AbstractCegarLoop]: Abstraction has 2904 states. [2021-01-20 14:49:20,901 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) [2021-01-20 14:49:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states. [2021-01-20 14:49:20,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 14:49:20,913 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:20,914 INFO L504 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] [2021-01-20 14:49:20,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:49:20,915 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:20,916 INFO L82 PathProgramCache]: Analyzing trace with hash 799772232, now seen corresponding path program 1 times [2021-01-20 14:49:20,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:20,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7176076] [2021-01-20 14:49:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:21,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7176076] [2021-01-20 14:49:21,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:21,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:49:21,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090977863] [2021-01-20 14:49:21,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:49:21,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:21,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:49:21,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:49:21,083 INFO L87 Difference]: Start difference. First operand 2904 states. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 14:49:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:21,349 INFO L93 Difference]: Finished difference Result 3576 states and 11571 transitions. [2021-01-20 14:49:21,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:49:21,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-01-20 14:49:21,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:21,373 INFO L225 Difference]: With dead ends: 3576 [2021-01-20 14:49:21,373 INFO L226 Difference]: Without dead ends: 2680 [2021-01-20 14:49:21,374 INFO L769 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 [2021-01-20 14:49:21,374 INFO L78 Accepts]: Start accepts. Automaton has 2680 states. Word has length 46 [2021-01-20 14:49:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:21,374 INFO L481 AbstractCegarLoop]: Abstraction has 2680 states. [2021-01-20 14:49:21,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 14:49:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states. [2021-01-20 14:49:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:49:21,383 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:21,383 INFO L504 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] [2021-01-20 14:49:21,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:49:21,384 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:21,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:21,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1590494414, now seen corresponding path program 1 times [2021-01-20 14:49:21,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:21,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591632286] [2021-01-20 14:49:21,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:21,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591632286] [2021-01-20 14:49:21,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:21,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:21,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188801537] [2021-01-20 14:49:21,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:21,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:21,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:21,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:21,637 INFO L87 Difference]: Start difference. First operand 2680 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2021-01-20 14:49:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:21,851 INFO L93 Difference]: Finished difference Result 2692 states and 8433 transitions. [2021-01-20 14:49:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:49:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 [2021-01-20 14:49:21,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:21,872 INFO L225 Difference]: With dead ends: 2692 [2021-01-20 14:49:21,872 INFO L226 Difference]: Without dead ends: 1924 [2021-01-20 14:49:21,873 INFO L769 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 [2021-01-20 14:49:21,873 INFO L78 Accepts]: Start accepts. Automaton has 1924 states. Word has length 47 [2021-01-20 14:49:21,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:21,874 INFO L481 AbstractCegarLoop]: Abstraction has 1924 states. [2021-01-20 14:49:21,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2021-01-20 14:49:21,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states. [2021-01-20 14:49:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:49:21,881 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:21,881 INFO L504 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] [2021-01-20 14:49:21,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:49:21,882 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:21,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:21,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1762956271, now seen corresponding path program 1 times [2021-01-20 14:49:21,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:21,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800128061] [2021-01-20 14:49:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:22,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800128061] [2021-01-20 14:49:22,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:22,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:49:22,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636449651] [2021-01-20 14:49:22,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:49:22,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:22,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:49:22,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:49:22,078 INFO L87 Difference]: Start difference. First operand 1924 states. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2021-01-20 14:49:22,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:22,335 INFO L93 Difference]: Finished difference Result 1447 states and 4276 transitions. [2021-01-20 14:49:22,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:49:22,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 49 [2021-01-20 14:49:22,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:22,344 INFO L225 Difference]: With dead ends: 1447 [2021-01-20 14:49:22,344 INFO L226 Difference]: Without dead ends: 1015 [2021-01-20 14:49:22,345 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:49:22,345 INFO L78 Accepts]: Start accepts. Automaton has 1015 states. Word has length 49 [2021-01-20 14:49:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:22,348 INFO L481 AbstractCegarLoop]: Abstraction has 1015 states. [2021-01-20 14:49:22,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2021-01-20 14:49:22,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states. [2021-01-20 14:49:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:49:22,358 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:22,361 INFO L504 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] [2021-01-20 14:49:22,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:49:22,362 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:22,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1204892077, now seen corresponding path program 1 times [2021-01-20 14:49:22,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:22,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432402744] [2021-01-20 14:49:22,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:22,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432402744] [2021-01-20 14:49:22,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:22,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:22,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563841490] [2021-01-20 14:49:22,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:22,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:22,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:22,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:22,507 INFO L87 Difference]: Start difference. First operand 1015 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:22,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:22,606 INFO L93 Difference]: Finished difference Result 1418 states and 4076 transitions. [2021-01-20 14:49:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:49:22,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-01-20 14:49:22,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:22,612 INFO L225 Difference]: With dead ends: 1418 [2021-01-20 14:49:22,612 INFO L226 Difference]: Without dead ends: 715 [2021-01-20 14:49:22,613 INFO L769 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 [2021-01-20 14:49:22,613 INFO L78 Accepts]: Start accepts. Automaton has 715 states. Word has length 53 [2021-01-20 14:49:22,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:22,613 INFO L481 AbstractCegarLoop]: Abstraction has 715 states. [2021-01-20 14:49:22,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states. [2021-01-20 14:49:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:49:22,616 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:22,616 INFO L504 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] [2021-01-20 14:49:22,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:49:22,617 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:22,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:22,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1710619263, now seen corresponding path program 2 times [2021-01-20 14:49:22,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:22,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682684498] [2021-01-20 14:49:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:22,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682684498] [2021-01-20 14:49:22,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:22,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:22,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627796002] [2021-01-20 14:49:22,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:22,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:22,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:22,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:22,720 INFO L87 Difference]: Start difference. First operand 715 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:22,800 INFO L93 Difference]: Finished difference Result 607 states and 1685 transitions. [2021-01-20 14:49:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:49:22,801 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-01-20 14:49:22,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:22,802 INFO L225 Difference]: With dead ends: 607 [2021-01-20 14:49:22,802 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:49:22,802 INFO L769 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 [2021-01-20 14:49:22,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 53 [2021-01-20 14:49:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:22,803 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:49:22,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:49:22,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:49:22,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:49:22,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:49:22 BasicIcfg [2021-01-20 14:49:22,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:49:22,811 INFO L168 Benchmark]: Toolchain (without parser) took 6016.31 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.8 MB in the beginning and 209.9 MB in the end (delta: 66.9 MB). Peak memory consumption was 129.4 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:22,812 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:49:22,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.99 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 244.9 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:22,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.59 ms. Allocated memory is still 302.0 MB. Free memory was 244.7 MB in the beginning and 243.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:49:22,814 INFO L168 Benchmark]: Boogie Preprocessor took 90.31 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 283.5 MB in the end (delta: -40.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:22,815 INFO L168 Benchmark]: RCFGBuilder took 451.70 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 259.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:22,816 INFO L168 Benchmark]: TraceAbstraction took 4580.95 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 259.4 MB in the beginning and 209.9 MB in the end (delta: 49.6 MB). Peak memory consumption was 112.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:22,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 799.99 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 244.9 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 82.59 ms. Allocated memory is still 302.0 MB. Free memory was 244.7 MB in the beginning and 243.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 90.31 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 283.5 MB in the end (delta: -40.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. * RCFGBuilder took 451.70 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 259.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4580.95 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 259.4 MB in the beginning and 209.9 MB in the end (delta: 49.6 MB). Peak memory consumption was 112.5 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 635 SDtfs, 949 SDslu, 2154 SDs, 0 SdLazy, 273 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8448occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 41295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...