/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 --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:13:42,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:13:42,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:13:42,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:13:42,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:13:42,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:13:42,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:13:42,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:13:42,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:13:42,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:13:42,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:13:42,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:13:42,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:13:42,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:13:42,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:13:42,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:13:42,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:13:42,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:13:42,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:13:42,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:13:42,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:13:42,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:13:42,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:13:42,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:13:42,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:13:42,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:13:42,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:13:42,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:13:42,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:13:42,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:13:42,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:13:42,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:13:42,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:13:42,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:13:42,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:13:42,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:13:42,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:13:42,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:13:42,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:13:42,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:13:42,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:13:42,803 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 [2022-09-16 11:13:42,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:13:42,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:13:42,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:13:42,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:13:42,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:13:42,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:13:42,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:13:42,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:13:42,848 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:13:42,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:13:42,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:13:42,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:13:42,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:13:42,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:13:42,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:13:42,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:13:42,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:13:42,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:13:42,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:13:42,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:13:42,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:13:42,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:13:42,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:13:42,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:13:42,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:13:42,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:13:42,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:13:42,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:13:42,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:13:42,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:13:42,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:13:42,852 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:13:42,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:13:42,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:13:43,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:13:43,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:13:43,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:13:43,130 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:13:43,131 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:13:43,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2022-09-16 11:13:43,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d4896bc/632be42f98654bbaaeddbde9971460bf/FLAG9290d4283 [2022-09-16 11:13:43,558 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:13:43,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2022-09-16 11:13:43,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d4896bc/632be42f98654bbaaeddbde9971460bf/FLAG9290d4283 [2022-09-16 11:13:43,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d4896bc/632be42f98654bbaaeddbde9971460bf [2022-09-16 11:13:43,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:13:43,969 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:13:43,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:13:43,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:13:43,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:13:43,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:13:43" (1/1) ... [2022-09-16 11:13:43,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6593b7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:43, skipping insertion in model container [2022-09-16 11:13:43,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:13:43" (1/1) ... [2022-09-16 11:13:43,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:13:43,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:13:44,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c[2438,2451] [2022-09-16 11:13:44,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:13:44,254 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:13:44,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c[2438,2451] [2022-09-16 11:13:44,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:13:44,309 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:13:44,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44 WrapperNode [2022-09-16 11:13:44,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:13:44,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:13:44,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:13:44,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:13:44,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,358 INFO L138 Inliner]: procedures = 24, calls = 33, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 134 [2022-09-16 11:13:44,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:13:44,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:13:44,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:13:44,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:13:44,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:13:44,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:13:44,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:13:44,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:13:44,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (1/1) ... [2022-09-16 11:13:44,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:13:44,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:44,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:13:44,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:13:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:13:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:13:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:13:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:13:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:13:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:13:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:13:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:13:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:13:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:13:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:13:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:13:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:13:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:13:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:13:44,456 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:13:44,532 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:13:44,533 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:13:44,731 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:13:44,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:13:44,921 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 11:13:44,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:13:44 BoogieIcfgContainer [2022-09-16 11:13:44,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:13:44,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:13:44,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:13:44,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:13:44,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:13:43" (1/3) ... [2022-09-16 11:13:44,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e7f718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:13:44, skipping insertion in model container [2022-09-16 11:13:44,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:13:44" (2/3) ... [2022-09-16 11:13:44,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e7f718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:13:44, skipping insertion in model container [2022-09-16 11:13:44,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:13:44" (3/3) ... [2022-09-16 11:13:44,939 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c [2022-09-16 11:13:44,947 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:13:44,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:13:44,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:13:44,957 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:13:45,032 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 11:13:45,070 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 125 places, 127 transitions, 270 flow [2022-09-16 11:13:45,121 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 399 states, 389 states have (on average 2.501285347043702) internal successors, (973), 398 states have internal predecessors, (973), 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) [2022-09-16 11:13:45,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:13:45,142 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5160bcb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:13:45,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-09-16 11:13:45,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 389 states have (on average 2.501285347043702) internal successors, (973), 398 states have internal predecessors, (973), 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) [2022-09-16 11:13:45,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-09-16 11:13:45,153 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:45,153 INFO L195 NwaCegarLoop]: 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] [2022-09-16 11:13:45,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-09-16 11:13:45,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:45,159 INFO L85 PathProgramCache]: Analyzing trace with hash 650990987, now seen corresponding path program 1 times [2022-09-16 11:13:45,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:45,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708082262] [2022-09-16 11:13:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:45,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:45,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:45,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708082262] [2022-09-16 11:13:45,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708082262] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:45,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:13:45,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:13:45,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386769523] [2022-09-16 11:13:45,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:45,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:13:45,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:13:45,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:13:45,529 INFO L87 Difference]: Start difference. First operand has 399 states, 389 states have (on average 2.501285347043702) internal successors, (973), 398 states have internal predecessors, (973), 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 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:13:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:45,676 INFO L93 Difference]: Finished difference Result 592 states and 1386 transitions. [2022-09-16 11:13:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:13:45,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-09-16 11:13:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:45,695 INFO L225 Difference]: With dead ends: 592 [2022-09-16 11:13:45,695 INFO L226 Difference]: Without dead ends: 590 [2022-09-16 11:13:45,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:13:45,700 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 43 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:45,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 251 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:45,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-09-16 11:13:45,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 327. [2022-09-16 11:13:45,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 2.251552795031056) internal successors, (725), 326 states have internal predecessors, (725), 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) [2022-09-16 11:13:45,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 725 transitions. [2022-09-16 11:13:45,758 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 725 transitions. Word has length 54 [2022-09-16 11:13:45,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:45,758 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 725 transitions. [2022-09-16 11:13:45,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:13:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 725 transitions. [2022-09-16 11:13:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-09-16 11:13:45,760 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:45,761 INFO L195 NwaCegarLoop]: 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] [2022-09-16 11:13:45,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:13:45,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-09-16 11:13:45,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1788017742, now seen corresponding path program 1 times [2022-09-16 11:13:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:45,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173361303] [2022-09-16 11:13:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:45,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:45,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:45,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173361303] [2022-09-16 11:13:45,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173361303] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:45,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:13:45,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:13:45,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617214456] [2022-09-16 11:13:45,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:45,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:13:45,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:45,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:13:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:13:45,917 INFO L87 Difference]: Start difference. First operand 327 states and 725 transitions. Second operand has 6 states, 5 states have (on average 12.2) 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) [2022-09-16 11:13:46,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:46,034 INFO L93 Difference]: Finished difference Result 520 states and 1135 transitions. [2022-09-16 11:13:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:13:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) 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 [2022-09-16 11:13:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:46,038 INFO L225 Difference]: With dead ends: 520 [2022-09-16 11:13:46,038 INFO L226 Difference]: Without dead ends: 328 [2022-09-16 11:13:46,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:13:46,040 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 230 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:46,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 282 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:46,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-09-16 11:13:46,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 327. [2022-09-16 11:13:46,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 2.248447204968944) internal successors, (724), 326 states have internal predecessors, (724), 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) [2022-09-16 11:13:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 724 transitions. [2022-09-16 11:13:46,058 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 724 transitions. Word has length 61 [2022-09-16 11:13:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:46,058 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 724 transitions. [2022-09-16 11:13:46,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) 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) [2022-09-16 11:13:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 724 transitions. [2022-09-16 11:13:46,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 11:13:46,060 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:46,060 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:46,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:13:46,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-09-16 11:13:46,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:46,061 INFO L85 PathProgramCache]: Analyzing trace with hash -124324023, now seen corresponding path program 1 times [2022-09-16 11:13:46,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:46,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209168661] [2022-09-16 11:13:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:46,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:46,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:46,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209168661] [2022-09-16 11:13:46,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209168661] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:46,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769195531] [2022-09-16 11:13:46,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:46,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:46,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:46,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:46,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:13:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:46,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:46,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:46,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:46,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769195531] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:46,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:46,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:13:46,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661650334] [2022-09-16 11:13:46,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:46,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:13:46,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:46,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:13:46,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:13:46,420 INFO L87 Difference]: Start difference. First operand 327 states and 724 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 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) [2022-09-16 11:13:46,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:46,633 INFO L93 Difference]: Finished difference Result 1141 states and 2729 transitions. [2022-09-16 11:13:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:13:46,634 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 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 [2022-09-16 11:13:46,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:46,643 INFO L225 Difference]: With dead ends: 1141 [2022-09-16 11:13:46,643 INFO L226 Difference]: Without dead ends: 1141 [2022-09-16 11:13:46,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:13:46,646 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 192 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:46,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 500 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:46,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-09-16 11:13:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 353. [2022-09-16 11:13:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 348 states have (on average 2.1695402298850577) internal successors, (755), 352 states have internal predecessors, (755), 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) [2022-09-16 11:13:46,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 755 transitions. [2022-09-16 11:13:46,670 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 755 transitions. Word has length 63 [2022-09-16 11:13:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:46,671 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 755 transitions. [2022-09-16 11:13:46,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 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) [2022-09-16 11:13:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 755 transitions. [2022-09-16 11:13:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 11:13:46,673 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:46,673 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:46,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:46,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:46,896 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-09-16 11:13:46,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:46,897 INFO L85 PathProgramCache]: Analyzing trace with hash 440922962, now seen corresponding path program 1 times [2022-09-16 11:13:46,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:46,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531834852] [2022-09-16 11:13:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:46,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:46,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531834852] [2022-09-16 11:13:46,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531834852] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883534179] [2022-09-16 11:13:46,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:46,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:46,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:46,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:46,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:13:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:47,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:47,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:47,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:13:47,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883534179] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:47,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:13:47,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:13:47,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201085137] [2022-09-16 11:13:47,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:47,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:13:47,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:47,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:13:47,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:13:47,090 INFO L87 Difference]: Start difference. First operand 353 states and 755 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 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) [2022-09-16 11:13:47,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:47,178 INFO L93 Difference]: Finished difference Result 352 states and 752 transitions. [2022-09-16 11:13:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:13:47,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 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 [2022-09-16 11:13:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:47,182 INFO L225 Difference]: With dead ends: 352 [2022-09-16 11:13:47,182 INFO L226 Difference]: Without dead ends: 352 [2022-09-16 11:13:47,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:13:47,183 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 48 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:47,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 340 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-09-16 11:13:47,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2022-09-16 11:13:47,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 348 states have (on average 2.160919540229885) internal successors, (752), 351 states have internal predecessors, (752), 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) [2022-09-16 11:13:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 752 transitions. [2022-09-16 11:13:47,195 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 752 transitions. Word has length 64 [2022-09-16 11:13:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:47,195 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 752 transitions. [2022-09-16 11:13:47,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 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) [2022-09-16 11:13:47,195 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 752 transitions. [2022-09-16 11:13:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-09-16 11:13:47,196 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:47,197 INFO L195 NwaCegarLoop]: 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, 1, 1, 1] [2022-09-16 11:13:47,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:47,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-09-16 11:13:47,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-09-16 11:13:47,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:47,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1780772812, now seen corresponding path program 1 times [2022-09-16 11:13:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:47,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919326409] [2022-09-16 11:13:47,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:47,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:47,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:47,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919326409] [2022-09-16 11:13:47,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919326409] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:47,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385461158] [2022-09-16 11:13:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:47,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:47,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:47,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:47,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 11:13:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:47,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:47,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:47,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:13:47,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385461158] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:47,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:13:47,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-09-16 11:13:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813761904] [2022-09-16 11:13:47,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:47,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:13:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:13:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:13:47,752 INFO L87 Difference]: Start difference. First operand 352 states and 752 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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) [2022-09-16 11:13:47,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:47,778 INFO L93 Difference]: Finished difference Result 283 states and 569 transitions. [2022-09-16 11:13:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:13:47,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2022-09-16 11:13:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:47,779 INFO L225 Difference]: With dead ends: 283 [2022-09-16 11:13:47,779 INFO L226 Difference]: Without dead ends: 91 [2022-09-16 11:13:47,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:13:47,780 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 33 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:47,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 183 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:13:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-09-16 11:13:47,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-09-16 11:13:47,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.011111111111111) internal successors, (91), 90 states have internal predecessors, (91), 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) [2022-09-16 11:13:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2022-09-16 11:13:47,784 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 70 [2022-09-16 11:13:47,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:47,784 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2022-09-16 11:13:47,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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) [2022-09-16 11:13:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2022-09-16 11:13:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-09-16 11:13:47,788 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:47,789 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:47,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:48,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:48,003 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-09-16 11:13:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:48,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1047105803, now seen corresponding path program 2 times [2022-09-16 11:13:48,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:48,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121075894] [2022-09-16 11:13:48,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:48,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:48,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:48,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121075894] [2022-09-16 11:13:48,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121075894] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:48,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858485247] [2022-09-16 11:13:48,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:13:48,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:48,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:48,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:48,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 11:13:48,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:13:48,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:13:48,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:13:48,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 11:13:48,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:48,542 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 11:13:48,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858485247] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:48,543 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:48,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 11:13:48,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721299569] [2022-09-16 11:13:48,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:48,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:13:48,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:48,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:13:48,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:13:48,545 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand has 18 states, 17 states have (on average 7.823529411764706) internal successors, (133), 18 states have internal predecessors, (133), 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) [2022-09-16 11:13:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:48,944 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2022-09-16 11:13:48,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:13:48,945 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.823529411764706) internal successors, (133), 18 states have internal predecessors, (133), 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 90 [2022-09-16 11:13:48,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:48,945 INFO L225 Difference]: With dead ends: 103 [2022-09-16 11:13:48,945 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 11:13:48,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 169 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 11:13:48,946 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 221 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:48,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 296 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:48,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 11:13:48,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 11:13:48,948 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) [2022-09-16 11:13:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 11:13:48,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2022-09-16 11:13:48,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:48,948 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 11:13:48,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.823529411764706) internal successors, (133), 18 states have internal predecessors, (133), 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) [2022-09-16 11:13:48,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 11:13:48,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 11:13:48,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-09-16 11:13:48,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-09-16 11:13:48,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-09-16 11:13:48,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-09-16 11:13:48,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-09-16 11:13:48,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-09-16 11:13:48,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-09-16 11:13:48,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-09-16 11:13:48,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-09-16 11:13:48,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-09-16 11:13:48,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-09-16 11:13:48,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-09-16 11:13:48,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:49,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:49,170 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-09-16 11:13:49,174 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:13:49,175 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:13:49,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:13:49 BasicIcfg [2022-09-16 11:13:49,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:13:49,177 INFO L158 Benchmark]: Toolchain (without parser) took 5208.26ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 119.8MB in the beginning and 94.1MB in the end (delta: 25.7MB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. [2022-09-16 11:13:49,178 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:13:49,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.90ms. Allocated memory is still 176.2MB. Free memory was 119.5MB in the beginning and 149.8MB in the end (delta: -30.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:13:49,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.02ms. Allocated memory is still 176.2MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:13:49,178 INFO L158 Benchmark]: Boogie Preprocessor took 28.22ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 146.3MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:13:49,179 INFO L158 Benchmark]: RCFGBuilder took 535.18ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 124.6MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-16 11:13:49,179 INFO L158 Benchmark]: TraceAbstraction took 4252.16ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 124.3MB in the beginning and 94.1MB in the end (delta: 30.2MB). Peak memory consumption was 77.2MB. Max. memory is 8.0GB. [2022-09-16 11:13:49,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 339.90ms. Allocated memory is still 176.2MB. Free memory was 119.5MB in the beginning and 149.8MB in the end (delta: -30.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.02ms. Allocated memory is still 176.2MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.22ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 146.3MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 535.18ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 124.6MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4252.16ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 124.3MB in the beginning and 94.1MB in the end (delta: 30.2MB). Peak memory consumption was 77.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 139 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 767 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 767 mSDsluCounter, 1852 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1473 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 423 IncrementalHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 465 mSDtfsCounter, 423 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 420 SyntacticMatches, 5 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=399occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1052 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 689 NumberOfCodeBlocks, 653 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 830 ConstructedInterpolants, 0 QuantifiedInterpolants, 1644 SizeOfPredicates, 13 NumberOfNonLiveVariables, 589 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 124/268 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:13:49,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...