/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:52:16,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:52:16,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:52:16,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:52:16,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:52:16,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:52:16,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:52:16,492 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 [2021-07-13 18:52:16,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:52:16,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:52:16,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:52:16,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:52:16,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:52:16,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:52:16,533 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:52:16,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:52:16,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:52:16,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:52:16,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:52:16,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:52:16,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:52:16,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:52:16,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:52:16,534 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:52:16,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:52:16,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:52:16,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:52:16,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:52:16,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:52:16,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:52:16,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:52:16,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:52:16,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:52:16,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:52:16,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:52:16,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:52:16,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:52:16,537 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:52:16,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:52:16,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:52:16,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:52:16,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:52:16,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:52:16,886 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:52:16,886 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:52:16,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-07-13 18:52:16,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/741a598f0/ef900335342744dcb2ed23c31931e337/FLAG02a0eace9 [2021-07-13 18:52:17,447 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:52:17,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-07-13 18:52:17,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/741a598f0/ef900335342744dcb2ed23c31931e337/FLAG02a0eace9 [2021-07-13 18:52:17,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/741a598f0/ef900335342744dcb2ed23c31931e337 [2021-07-13 18:52:17,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:52:17,988 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:52:17,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:52:17,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:52:17,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:52:17,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:52:17" (1/1) ... [2021-07-13 18:52:17,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f84e5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:17, skipping insertion in model container [2021-07-13 18:52:17,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:52:17" (1/1) ... [2021-07-13 18:52:18,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:52:18,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:52:18,170 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-07-13 18:52:18,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:52:18,368 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:52:18,379 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-07-13 18:52:18,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:52:18,440 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:52:18,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18 WrapperNode [2021-07-13 18:52:18,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:52:18,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:52:18,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:52:18,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:52:18,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:52:18,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:52:18,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:52:18,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:52:18,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (1/1) ... [2021-07-13 18:52:18,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:52:18,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:52:18,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:52:18,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:52:18,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (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 [2021-07-13 18:52:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:52:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:52:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:52:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:52:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-13 18:52:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-13 18:52:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-13 18:52:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-13 18:52:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-13 18:52:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-13 18:52:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-13 18:52:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-13 18:52:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:52:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:52:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:52:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:52:18,586 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:52:18,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:52:18,995 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-13 18:52:18,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:52:18 BoogieIcfgContainer [2021-07-13 18:52:18,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:52:19,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:52:19,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:52:19,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:52:19,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:52:17" (1/3) ... [2021-07-13 18:52:19,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a34602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:52:19, skipping insertion in model container [2021-07-13 18:52:19,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:52:18" (2/3) ... [2021-07-13 18:52:19,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a34602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:52:19, skipping insertion in model container [2021-07-13 18:52:19,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:52:18" (3/3) ... [2021-07-13 18:52:19,006 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2021-07-13 18:52:19,013 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:52:19,014 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:52:19,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:52:19,015 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:52:19,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,058 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,058 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,058 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,082 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,082 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,082 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,085 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,085 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,085 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,087 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,087 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,088 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,088 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,089 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,091 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,091 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,097 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,098 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:52:19,105 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-13 18:52:19,125 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-13 18:52:19,155 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:52:19,155 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:52:19,155 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:52:19,155 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:52:19,155 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:52:19,155 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:52:19,155 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:52:19,155 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:52:19,171 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 97 transitions, 214 flow [2021-07-13 18:52:20,639 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28882 states, 28881 states have (on average 4.297773622796995) internal successors, (124124), 28881 states have internal predecessors, (124124), 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) [2021-07-13 18:52:20,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 28882 states, 28881 states have (on average 4.297773622796995) internal successors, (124124), 28881 states have internal predecessors, (124124), 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) [2021-07-13 18:52:20,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-13 18:52:20,870 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:20,871 INFO L508 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, 1] [2021-07-13 18:52:20,872 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:20,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:20,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-07-13 18:52:20,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:20,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381657098] [2021-07-13 18:52:20,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:21,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:21,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381657098] [2021-07-13 18:52:21,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381657098] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:21,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:21,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:52:21,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674698600] [2021-07-13 18:52:21,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:52:21,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:21,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:52:21,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:52:21,469 INFO L87 Difference]: Start difference. First operand has 28882 states, 28881 states have (on average 4.297773622796995) internal successors, (124124), 28881 states have internal predecessors, (124124), 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 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-07-13 18:52:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:23,005 INFO L93 Difference]: Finished difference Result 53986 states and 225240 transitions. [2021-07-13 18:52:23,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:52:23,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-07-13 18:52:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:23,577 INFO L225 Difference]: With dead ends: 53986 [2021-07-13 18:52:23,577 INFO L226 Difference]: Without dead ends: 36814 [2021-07-13 18:52:23,578 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 313.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:52:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36814 states. [2021-07-13 18:52:25,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36814 to 30478. [2021-07-13 18:52:25,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30478 states, 30477 states have (on average 4.128884076516718) internal successors, (125836), 30477 states have internal predecessors, (125836), 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) [2021-07-13 18:52:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30478 states to 30478 states and 125836 transitions. [2021-07-13 18:52:25,653 INFO L78 Accepts]: Start accepts. Automaton has 30478 states and 125836 transitions. Word has length 55 [2021-07-13 18:52:25,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:25,655 INFO L482 AbstractCegarLoop]: Abstraction has 30478 states and 125836 transitions. [2021-07-13 18:52:25,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-07-13 18:52:25,656 INFO L276 IsEmpty]: Start isEmpty. Operand 30478 states and 125836 transitions. [2021-07-13 18:52:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-13 18:52:25,736 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:25,737 INFO L508 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, 1, 1, 1] [2021-07-13 18:52:25,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:52:25,737 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash -728552423, now seen corresponding path program 1 times [2021-07-13 18:52:25,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:25,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743171945] [2021-07-13 18:52:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:25,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:25,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743171945] [2021-07-13 18:52:25,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743171945] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:25,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:25,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:52:25,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613124178] [2021-07-13 18:52:25,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:52:25,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:25,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:52:25,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:52:25,917 INFO L87 Difference]: Start difference. First operand 30478 states and 125836 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-07-13 18:52:27,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:27,158 INFO L93 Difference]: Finished difference Result 45766 states and 187560 transitions. [2021-07-13 18:52:27,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:52:27,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-07-13 18:52:27,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:27,434 INFO L225 Difference]: With dead ends: 45766 [2021-07-13 18:52:27,435 INFO L226 Difference]: Without dead ends: 36694 [2021-07-13 18:52:27,435 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 169.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:52:27,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36694 states. [2021-07-13 18:52:28,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36694 to 29230. [2021-07-13 18:52:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29230 states, 29229 states have (on average 4.115022751377057) internal successors, (120278), 29229 states have internal predecessors, (120278), 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) [2021-07-13 18:52:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29230 states to 29230 states and 120278 transitions. [2021-07-13 18:52:29,210 INFO L78 Accepts]: Start accepts. Automaton has 29230 states and 120278 transitions. Word has length 57 [2021-07-13 18:52:29,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:29,211 INFO L482 AbstractCegarLoop]: Abstraction has 29230 states and 120278 transitions. [2021-07-13 18:52:29,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-07-13 18:52:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 29230 states and 120278 transitions. [2021-07-13 18:52:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-13 18:52:29,302 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:29,302 INFO L508 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, 1, 1, 1, 1, 1] [2021-07-13 18:52:29,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:52:29,303 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:29,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:29,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1714446202, now seen corresponding path program 1 times [2021-07-13 18:52:29,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:29,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592476130] [2021-07-13 18:52:29,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:29,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:29,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592476130] [2021-07-13 18:52:29,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592476130] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:29,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:29,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:52:29,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215715947] [2021-07-13 18:52:29,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:52:29,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:29,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:52:29,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:52:29,509 INFO L87 Difference]: Start difference. First operand 29230 states and 120278 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2021-07-13 18:52:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:30,318 INFO L93 Difference]: Finished difference Result 50986 states and 207167 transitions. [2021-07-13 18:52:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:52:30,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2021-07-13 18:52:30,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:30,537 INFO L225 Difference]: With dead ends: 50986 [2021-07-13 18:52:30,538 INFO L226 Difference]: Without dead ends: 29028 [2021-07-13 18:52:30,538 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 169.2ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:52:30,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29028 states. [2021-07-13 18:52:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29028 to 24052. [2021-07-13 18:52:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.042576192258118) internal successors, (97228), 24051 states have internal predecessors, (97228), 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) [2021-07-13 18:52:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 97228 transitions. [2021-07-13 18:52:31,749 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 97228 transitions. Word has length 59 [2021-07-13 18:52:31,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:31,750 INFO L482 AbstractCegarLoop]: Abstraction has 24052 states and 97228 transitions. [2021-07-13 18:52:31,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2021-07-13 18:52:31,750 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 97228 transitions. [2021-07-13 18:52:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-13 18:52:31,810 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:31,810 INFO L508 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, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:31,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:52:31,810 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:31,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:31,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1550295207, now seen corresponding path program 1 times [2021-07-13 18:52:31,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:31,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788288007] [2021-07-13 18:52:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:31,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:31,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788288007] [2021-07-13 18:52:31,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788288007] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:31,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:31,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:52:31,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531037206] [2021-07-13 18:52:31,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:52:31,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:31,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:52:31,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:52:31,928 INFO L87 Difference]: Start difference. First operand 24052 states and 97228 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2021-07-13 18:52:32,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:32,482 INFO L93 Difference]: Finished difference Result 25332 states and 102012 transitions. [2021-07-13 18:52:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:52:32,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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 61 [2021-07-13 18:52:32,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:32,638 INFO L225 Difference]: With dead ends: 25332 [2021-07-13 18:52:32,638 INFO L226 Difference]: Without dead ends: 23092 [2021-07-13 18:52:32,639 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:52:32,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23092 states. [2021-07-13 18:52:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23092 to 22068. [2021-07-13 18:52:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22068 states, 22067 states have (on average 4.027552453890425) internal successors, (88876), 22067 states have internal predecessors, (88876), 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) [2021-07-13 18:52:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22068 states to 22068 states and 88876 transitions. [2021-07-13 18:52:33,517 INFO L78 Accepts]: Start accepts. Automaton has 22068 states and 88876 transitions. Word has length 61 [2021-07-13 18:52:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:33,517 INFO L482 AbstractCegarLoop]: Abstraction has 22068 states and 88876 transitions. [2021-07-13 18:52:33,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2021-07-13 18:52:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand 22068 states and 88876 transitions. [2021-07-13 18:52:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:52:33,560 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:33,560 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:33,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:52:33,561 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:33,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1720929293, now seen corresponding path program 1 times [2021-07-13 18:52:33,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:33,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785998435] [2021-07-13 18:52:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:33,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:33,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785998435] [2021-07-13 18:52:33,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785998435] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:33,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:33,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:52:33,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824901327] [2021-07-13 18:52:33,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:52:33,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:33,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:52:33,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:52:33,692 INFO L87 Difference]: Start difference. First operand 22068 states and 88876 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-07-13 18:52:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:34,384 INFO L93 Difference]: Finished difference Result 46036 states and 181948 transitions. [2021-07-13 18:52:34,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 18:52:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2021-07-13 18:52:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:34,453 INFO L225 Difference]: With dead ends: 46036 [2021-07-13 18:52:34,454 INFO L226 Difference]: Without dead ends: 21276 [2021-07-13 18:52:34,454 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 183.6ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:52:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21276 states. [2021-07-13 18:52:35,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21276 to 16412. [2021-07-13 18:52:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16412 states, 16411 states have (on average 3.888245688867223) internal successors, (63810), 16411 states have internal predecessors, (63810), 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) [2021-07-13 18:52:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 63810 transitions. [2021-07-13 18:52:35,132 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 63810 transitions. Word has length 62 [2021-07-13 18:52:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:35,132 INFO L482 AbstractCegarLoop]: Abstraction has 16412 states and 63810 transitions. [2021-07-13 18:52:35,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-07-13 18:52:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 63810 transitions. [2021-07-13 18:52:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:52:35,161 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:35,161 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:35,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:52:35,162 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:35,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:35,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1335211924, now seen corresponding path program 1 times [2021-07-13 18:52:35,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:35,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226355534] [2021-07-13 18:52:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:35,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:35,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226355534] [2021-07-13 18:52:35,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226355534] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:35,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:35,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:52:35,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939166011] [2021-07-13 18:52:35,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:52:35,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:35,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:52:35,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:52:35,248 INFO L87 Difference]: Start difference. First operand 16412 states and 63810 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-07-13 18:52:35,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:35,810 INFO L93 Difference]: Finished difference Result 25564 states and 98786 transitions. [2021-07-13 18:52:35,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:52:35,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-07-13 18:52:35,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:35,875 INFO L225 Difference]: With dead ends: 25564 [2021-07-13 18:52:35,875 INFO L226 Difference]: Without dead ends: 19804 [2021-07-13 18:52:35,876 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 178.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:52:35,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19804 states. [2021-07-13 18:52:36,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19804 to 15084. [2021-07-13 18:52:36,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15084 states, 15083 states have (on average 3.872571769541868) internal successors, (58410), 15083 states have internal predecessors, (58410), 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) [2021-07-13 18:52:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15084 states to 15084 states and 58410 transitions. [2021-07-13 18:52:36,468 INFO L78 Accepts]: Start accepts. Automaton has 15084 states and 58410 transitions. Word has length 62 [2021-07-13 18:52:36,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:36,469 INFO L482 AbstractCegarLoop]: Abstraction has 15084 states and 58410 transitions. [2021-07-13 18:52:36,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-07-13 18:52:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 15084 states and 58410 transitions. [2021-07-13 18:52:36,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-13 18:52:36,498 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:36,499 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:36,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:52:36,499 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:36,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:36,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1834583096, now seen corresponding path program 1 times [2021-07-13 18:52:36,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:36,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351662986] [2021-07-13 18:52:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:36,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:36,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:36,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351662986] [2021-07-13 18:52:36,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351662986] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:36,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:36,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:52:36,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514082328] [2021-07-13 18:52:36,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:52:36,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:36,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:52:36,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:52:36,610 INFO L87 Difference]: Start difference. First operand 15084 states and 58410 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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) [2021-07-13 18:52:36,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:36,852 INFO L93 Difference]: Finished difference Result 20892 states and 80098 transitions. [2021-07-13 18:52:36,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-13 18:52:36,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2021-07-13 18:52:36,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:36,894 INFO L225 Difference]: With dead ends: 20892 [2021-07-13 18:52:36,895 INFO L226 Difference]: Without dead ends: 10247 [2021-07-13 18:52:36,895 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 91.1ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:52:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10247 states. [2021-07-13 18:52:37,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10247 to 9479. [2021-07-13 18:52:37,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 3.8269677147077443) internal successors, (36272), 9478 states have internal predecessors, (36272), 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) [2021-07-13 18:52:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 36272 transitions. [2021-07-13 18:52:37,463 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 36272 transitions. Word has length 63 [2021-07-13 18:52:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:37,463 INFO L482 AbstractCegarLoop]: Abstraction has 9479 states and 36272 transitions. [2021-07-13 18:52:37,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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) [2021-07-13 18:52:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 36272 transitions. [2021-07-13 18:52:37,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-13 18:52:37,480 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:37,480 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:37,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:52:37,481 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:37,481 INFO L82 PathProgramCache]: Analyzing trace with hash 975889552, now seen corresponding path program 2 times [2021-07-13 18:52:37,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:37,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718425362] [2021-07-13 18:52:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:37,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:37,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:37,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718425362] [2021-07-13 18:52:37,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718425362] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:37,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:37,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:52:37,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060054134] [2021-07-13 18:52:37,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:52:37,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:37,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:52:37,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:52:37,561 INFO L87 Difference]: Start difference. First operand 9479 states and 36272 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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) [2021-07-13 18:52:37,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:37,755 INFO L93 Difference]: Finished difference Result 12330 states and 46729 transitions. [2021-07-13 18:52:37,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:52:37,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 63 [2021-07-13 18:52:37,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:37,782 INFO L225 Difference]: With dead ends: 12330 [2021-07-13 18:52:37,782 INFO L226 Difference]: Without dead ends: 9130 [2021-07-13 18:52:37,783 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 84.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:52:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2021-07-13 18:52:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 9130. [2021-07-13 18:52:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9129 states have (on average 3.8041406506736775) internal successors, (34728), 9129 states have internal predecessors, (34728), 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) [2021-07-13 18:52:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 34728 transitions. [2021-07-13 18:52:38,174 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 34728 transitions. Word has length 63 [2021-07-13 18:52:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:38,174 INFO L482 AbstractCegarLoop]: Abstraction has 9130 states and 34728 transitions. [2021-07-13 18:52:38,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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) [2021-07-13 18:52:38,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 34728 transitions. [2021-07-13 18:52:38,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-13 18:52:38,191 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:38,191 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:38,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:52:38,191 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:38,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2021716262, now seen corresponding path program 1 times [2021-07-13 18:52:38,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:38,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949149956] [2021-07-13 18:52:38,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:38,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:38,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949149956] [2021-07-13 18:52:38,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949149956] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:38,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:38,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:52:38,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039120585] [2021-07-13 18:52:38,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:52:38,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:38,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:52:38,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:52:38,292 INFO L87 Difference]: Start difference. First operand 9130 states and 34728 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2021-07-13 18:52:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:38,482 INFO L93 Difference]: Finished difference Result 10600 states and 39578 transitions. [2021-07-13 18:52:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:52:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2021-07-13 18:52:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:38,504 INFO L225 Difference]: With dead ends: 10600 [2021-07-13 18:52:38,505 INFO L226 Difference]: Without dead ends: 7660 [2021-07-13 18:52:38,505 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 98.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:52:38,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7660 states. [2021-07-13 18:52:38,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7660 to 7660. [2021-07-13 18:52:38,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7660 states, 7659 states have (on average 3.7181094137615878) internal successors, (28477), 7659 states have internal predecessors, (28477), 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) [2021-07-13 18:52:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7660 states to 7660 states and 28477 transitions. [2021-07-13 18:52:38,653 INFO L78 Accepts]: Start accepts. Automaton has 7660 states and 28477 transitions. Word has length 64 [2021-07-13 18:52:38,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:38,653 INFO L482 AbstractCegarLoop]: Abstraction has 7660 states and 28477 transitions. [2021-07-13 18:52:38,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2021-07-13 18:52:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7660 states and 28477 transitions. [2021-07-13 18:52:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-13 18:52:38,664 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:38,665 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:38,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 18:52:38,665 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:38,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:38,665 INFO L82 PathProgramCache]: Analyzing trace with hash 321329459, now seen corresponding path program 1 times [2021-07-13 18:52:38,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:38,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041874214] [2021-07-13 18:52:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:38,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:38,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041874214] [2021-07-13 18:52:38,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041874214] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:38,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:38,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:52:38,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2610555] [2021-07-13 18:52:38,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:52:38,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:38,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:52:38,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:52:38,916 INFO L87 Difference]: Start difference. First operand 7660 states and 28477 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-07-13 18:52:39,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:39,103 INFO L93 Difference]: Finished difference Result 7003 states and 25387 transitions. [2021-07-13 18:52:39,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:52:39,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2021-07-13 18:52:39,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:39,118 INFO L225 Difference]: With dead ends: 7003 [2021-07-13 18:52:39,118 INFO L226 Difference]: Without dead ends: 4591 [2021-07-13 18:52:39,118 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 124.7ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:52:39,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-07-13 18:52:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4591. [2021-07-13 18:52:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4590 states have (on average 3.555773420479303) internal successors, (16321), 4590 states have internal predecessors, (16321), 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) [2021-07-13 18:52:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 16321 transitions. [2021-07-13 18:52:39,212 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 16321 transitions. Word has length 65 [2021-07-13 18:52:39,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:39,212 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 16321 transitions. [2021-07-13 18:52:39,212 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-07-13 18:52:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 16321 transitions. [2021-07-13 18:52:39,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-13 18:52:39,218 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:39,218 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:39,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 18:52:39,219 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:39,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1122375918, now seen corresponding path program 1 times [2021-07-13 18:52:39,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:39,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886124098] [2021-07-13 18:52:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:39,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:39,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886124098] [2021-07-13 18:52:39,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886124098] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:39,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:39,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:52:39,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077419775] [2021-07-13 18:52:39,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:52:39,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:39,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:52:39,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:52:39,323 INFO L87 Difference]: Start difference. First operand 4591 states and 16321 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2021-07-13 18:52:39,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:39,437 INFO L93 Difference]: Finished difference Result 5944 states and 20931 transitions. [2021-07-13 18:52:39,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:52:39,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2021-07-13 18:52:39,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:39,451 INFO L225 Difference]: With dead ends: 5944 [2021-07-13 18:52:39,452 INFO L226 Difference]: Without dead ends: 4869 [2021-07-13 18:52:39,452 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 88.2ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:52:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2021-07-13 18:52:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4383. [2021-07-13 18:52:39,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 4382 states have (on average 3.543815609310817) internal successors, (15529), 4382 states have internal predecessors, (15529), 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) [2021-07-13 18:52:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 15529 transitions. [2021-07-13 18:52:39,526 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 15529 transitions. Word has length 67 [2021-07-13 18:52:39,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:39,526 INFO L482 AbstractCegarLoop]: Abstraction has 4383 states and 15529 transitions. [2021-07-13 18:52:39,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2021-07-13 18:52:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 15529 transitions. [2021-07-13 18:52:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-13 18:52:39,532 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:52:39,532 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:52:39,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 18:52:39,533 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:52:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:52:39,533 INFO L82 PathProgramCache]: Analyzing trace with hash -567270188, now seen corresponding path program 2 times [2021-07-13 18:52:39,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:52:39,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231737386] [2021-07-13 18:52:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:52:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:52:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:52:39,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:52:39,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231737386] [2021-07-13 18:52:39,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231737386] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:52:39,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:52:39,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 18:52:39,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767130020] [2021-07-13 18:52:39,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 18:52:39,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:52:39,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 18:52:39,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-13 18:52:39,625 INFO L87 Difference]: Start difference. First operand 4383 states and 15529 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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) [2021-07-13 18:52:39,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:52:39,824 INFO L93 Difference]: Finished difference Result 3087 states and 10696 transitions. [2021-07-13 18:52:39,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:52:39,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 67 [2021-07-13 18:52:39,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:52:39,825 INFO L225 Difference]: With dead ends: 3087 [2021-07-13 18:52:39,825 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 18:52:39,826 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 112.6ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:52:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 18:52:39,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 18:52:39,826 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) [2021-07-13 18:52:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 18:52:39,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-07-13 18:52:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:52:39,826 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 18:52:39,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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) [2021-07-13 18:52:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 18:52:39,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 18:52:39,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 18:52:39,829 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:52:39,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:52:39 BasicIcfg [2021-07-13 18:52:39,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:52:39,832 INFO L168 Benchmark]: Toolchain (without parser) took 21844.19 ms. Allocated memory was 186.6 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 148.1 MB in the beginning and 5.5 GB in the end (delta: -5.3 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-07-13 18:52:39,832 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 186.6 MB. Free memory is still 166.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:52:39,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.32 ms. Allocated memory is still 186.6 MB. Free memory was 147.8 MB in the beginning and 160.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:52:39,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.20 ms. Allocated memory is still 186.6 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:52:39,833 INFO L168 Benchmark]: Boogie Preprocessor took 20.44 ms. Allocated memory is still 186.6 MB. Free memory was 158.2 MB in the beginning and 156.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:52:39,833 INFO L168 Benchmark]: RCFGBuilder took 499.55 ms. Allocated memory is still 186.6 MB. Free memory was 156.7 MB in the beginning and 131.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-07-13 18:52:39,833 INFO L168 Benchmark]: TraceAbstraction took 20831.24 ms. Allocated memory was 186.6 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 131.1 MB in the beginning and 5.5 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-07-13 18:52:39,835 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 186.6 MB. Free memory is still 166.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 451.32 ms. Allocated memory is still 186.6 MB. Free memory was 147.8 MB in the beginning and 160.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.20 ms. Allocated memory is still 186.6 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.44 ms. Allocated memory is still 186.6 MB. Free memory was 158.2 MB in the beginning and 156.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 499.55 ms. Allocated memory is still 186.6 MB. Free memory was 156.7 MB in the beginning and 131.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20831.24 ms. Allocated memory was 186.6 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 131.1 MB in the beginning and 5.5 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20675.1ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 617.8ms, AutomataDifference: 8103.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1483.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1600 SDtfs, 2825 SDslu, 5679 SDs, 0 SdLazy, 574 SolverSat, 145 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 597.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1752.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30478occurred in iteration=1, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8465.1ms AutomataMinimizationTime, 12 MinimizatonAttempts, 30638 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.8ms SsaConstructionTime, 241.3ms SatisfiabilityAnalysisTime, 1508.0ms InterpolantComputationTime, 745 NumberOfCodeBlocks, 745 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 733 ConstructedInterpolants, 0 QuantifiedInterpolants, 3361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...